diff --git a/typescript/ecs/cluster/index.ts b/typescript/ecs/cluster/index.ts
index 124914cae..aa2a9bd62 100644
--- a/typescript/ecs/cluster/index.ts
+++ b/typescript/ecs/cluster/index.ts
@@ -2,7 +2,7 @@ import autoscaling = require('@aws-cdk/aws-autoscaling');
 import ec2 = require('@aws-cdk/aws-ec2');
 import { InstanceType } from '@aws-cdk/aws-ec2';
 import ecs = require('@aws-cdk/aws-ecs');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class ECSCluster extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
@@ -13,7 +13,7 @@ class ECSCluster extends cdk.Stack {
     const asg = new autoscaling.AutoScalingGroup(this, 'MyFleet', {
       instanceType: new InstanceType("t2.xlarge"),
       machineImage: new ecs.EcsOptimizedAmi(),
-      updateType: autoscaling.UpdateType.ReplacingUpdate,
+      updateType: autoscaling.UpdateType.REPLACING_UPDATE,
       desiredCapacity: 3,
       vpc
     });
diff --git a/typescript/ecs/cluster/package.json b/typescript/ecs/cluster/package.json
index b634746f5..0b80c9968 100644
--- a/typescript/ecs/cluster/package.json
+++ b/typescript/ecs/cluster/package.json
@@ -21,6 +21,6 @@
   "dependencies": {
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/ecs-load-balanced-service/index.ts b/typescript/ecs/ecs-load-balanced-service/index.ts
index 71c34e106..1e364ece5 100644
--- a/typescript/ecs/ecs-load-balanced-service/index.ts
+++ b/typescript/ecs/ecs-load-balanced-service/index.ts
@@ -1,7 +1,7 @@
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
 import ecs_patterns = require('@aws-cdk/aws-ecs-patterns');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class BonjourECS extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
diff --git a/typescript/ecs/ecs-load-balanced-service/package.json b/typescript/ecs/ecs-load-balanced-service/package.json
index c011bbd7d..991a33bad 100644
--- a/typescript/ecs/ecs-load-balanced-service/package.json
+++ b/typescript/ecs/ecs-load-balanced-service/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-ecs-patterns": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/ecs-service-with-advanced-alb-config/index.ts b/typescript/ecs/ecs-service-with-advanced-alb-config/index.ts
index eb36933fd..6c928c09d 100644
--- a/typescript/ecs/ecs-service-with-advanced-alb-config/index.ts
+++ b/typescript/ecs/ecs-service-with-advanced-alb-config/index.ts
@@ -1,7 +1,7 @@
 import ecs = require('@aws-cdk/aws-ecs');
 import ec2 = require('@aws-cdk/aws-ec2');
 import elbv2 = require('@aws-cdk/aws-elasticloadbalancingv2');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 const app = new cdk.App();
 const stack = new cdk.Stack(app, 'aws-ecs-integ-ecs');
@@ -24,7 +24,7 @@ const container = taskDefinition.addContainer('web', {
 container.addPortMappings({
   containerPort: 80,
   hostPort: 8080,
-  protocol: ecs.Protocol.Tcp
+  protocol: ecs.Protocol.TCP
 });
 
 // Create Service
@@ -46,9 +46,9 @@ listener.addTargets('ECS', {
   targets: [service],
   // include health check (default is none)
   healthCheck: {
-    intervalSecs: 60,
+    interval: cdk.Duration.seconds(60),
     path: "/health",
-    timeoutSeconds: 5,
+    timeout: cdk.Duration.seconds(5),
   }
 });
 
diff --git a/typescript/ecs/ecs-service-with-advanced-alb-config/package.json b/typescript/ecs/ecs-service-with-advanced-alb-config/package.json
index 18f0eb77e..fd2417560 100644
--- a/typescript/ecs/ecs-service-with-advanced-alb-config/package.json
+++ b/typescript/ecs/ecs-service-with-advanced-alb-config/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-elasticloadbalancingv2": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/ecs-service-with-logging/index.ts b/typescript/ecs/ecs-service-with-logging/index.ts
index d096cf127..3a5ce7e24 100644
--- a/typescript/ecs/ecs-service-with-logging/index.ts
+++ b/typescript/ecs/ecs-service-with-logging/index.ts
@@ -1,6 +1,6 @@
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class WillkommenECS extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
@@ -13,9 +13,7 @@ class WillkommenECS extends cdk.Stack {
     });
 
     // create a task definition with CloudWatch Logs
-    const logging = new ecs.AwsLogDriver(this, "AppLogging", {
-      streamPrefix: "myapp",
-    })
+    const logging = new ecs.AwsLogDriver({ streamPrefix: "myapp" })
 
     const taskDef = new ecs.Ec2TaskDefinition(this, "MyTaskDefinition");
     taskDef.addContainer("AppContainer", {
diff --git a/typescript/ecs/ecs-service-with-logging/package-lock.json b/typescript/ecs/ecs-service-with-logging/package-lock.json
deleted file mode 100644
index 06bc7ad5a..000000000
--- a/typescript/ecs/ecs-service-with-logging/package-lock.json
+++ /dev/null
@@ -1,481 +0,0 @@
-{
-  "name": "ecs-service-with-logging",
-  "version": "0.23.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "@aws-cdk/assets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets/-/assets-0.34.0.tgz",
-      "integrity": "sha512-nXAAFb6EKhdVcNseZQnjiYYrpzbJu8tVCfSJiIbi6WjYw+7jygexj7YkrZY1jRnCHUIqWcGD2LeCUx/k8yY4aQ==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0",
-        "minimatch": "^3.0.4"
-      },
-      "dependencies": {
-        "balanced-match": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "brace-expansion": {
-          "version": "1.1.11",
-          "bundled": true,
-          "requires": {
-            "balanced-match": "^1.0.0",
-            "concat-map": "0.0.1"
-          }
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true
-        },
-        "minimatch": {
-          "version": "3.0.4",
-          "bundled": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        }
-      }
-    },
-    "@aws-cdk/assets-docker": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets-docker/-/assets-docker-0.34.0.tgz",
-      "integrity": "sha512-SMuDqZtr8eirZsUXG8gskteXRXLJ5Jsb1us5pg8NtVPzF1drgu2iW/E8YlSP1QBZF20nqLfjMm7C1cEy/NxPHg==",
-      "requires": {
-        "@aws-cdk/assets": "^0.34.0",
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-ecr": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-applicationautoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-applicationautoscaling/-/aws-applicationautoscaling-0.34.0.tgz",
-      "integrity": "sha512-XjZJHGDEW77l6kFAPuId8unr6FYX0E0d/qUq7BmjQEbdW/3ljSlZeDQb5sObvHjR7eTpyhaNzLEfePM6A3x2fw==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling/-/aws-autoscaling-0.34.0.tgz",
-      "integrity": "sha512-B+JXGjBm9hwbm4GAe0nmGvrrNGkjNdF9UvMqk1O4cXYr7gabIOcbemWGU3i7sLYUEvcjEgQYA8s9KsxIhlp99w==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancing": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling-common": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling-common/-/aws-autoscaling-common-0.34.0.tgz",
-      "integrity": "sha512-HmYDOACF1o3vR01IHgkY0BfXnZIFUCY8epBUUowYD5zbtqG2Cne/6TGaw9m7hBXJnuQmyGhvlPmtV+nW/aGnLQ==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling-hooktargets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling-hooktargets/-/aws-autoscaling-hooktargets-0.34.0.tgz",
-      "integrity": "sha512-JSnA4Fk+9olF2Gx6JgKqfjwevt6q2Xku01c1k7zI9Z53Jru2RZ/sG56jAYZarbB0YH9mJy6sOqzWOu9s5EPnwA==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-certificatemanager": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-certificatemanager/-/aws-certificatemanager-0.34.0.tgz",
-      "integrity": "sha512-tp0w0ifzlUPkaAYR9dJJZ8iwxgqucrRHXK5HoG5PY8WcBH1xSAIm6MtfP5R7Dh9s5hUwg1hz8wygEerN90SrzA==",
-      "requires": {
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-cloudformation": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudformation/-/aws-cloudformation-0.34.0.tgz",
-      "integrity": "sha512-F9W53h4Ho//2YrdEgBj7JIXbYo/LT7V2FL33SK9guBHAxYVWWNipFcu/rvuZtKm/8te7F102b9RZGE42yfjKIg==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "aws-sdk": "^2.409.0"
-      },
-      "dependencies": {
-        "aws-sdk": {
-          "version": "2.469.0",
-          "bundled": true,
-          "requires": {
-            "buffer": "4.9.1",
-            "events": "1.1.1",
-            "ieee754": "1.1.8",
-            "jmespath": "0.15.0",
-            "querystring": "0.2.0",
-            "sax": "1.2.1",
-            "url": "0.10.3",
-            "uuid": "3.3.2",
-            "xml2js": "0.4.19"
-          }
-        },
-        "base64-js": {
-          "version": "1.3.0",
-          "bundled": true
-        },
-        "buffer": {
-          "version": "4.9.1",
-          "bundled": true,
-          "requires": {
-            "base64-js": "^1.0.2",
-            "ieee754": "^1.1.4",
-            "isarray": "^1.0.0"
-          }
-        },
-        "events": {
-          "version": "1.1.1",
-          "bundled": true
-        },
-        "ieee754": {
-          "version": "1.1.8",
-          "bundled": true
-        },
-        "isarray": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "jmespath": {
-          "version": "0.15.0",
-          "bundled": true
-        },
-        "punycode": {
-          "version": "1.3.2",
-          "bundled": true
-        },
-        "querystring": {
-          "version": "0.2.0",
-          "bundled": true
-        },
-        "sax": {
-          "version": "1.2.1",
-          "bundled": true
-        },
-        "url": {
-          "version": "0.10.3",
-          "bundled": true,
-          "requires": {
-            "punycode": "1.3.2",
-            "querystring": "0.2.0"
-          }
-        },
-        "uuid": {
-          "version": "3.3.2",
-          "bundled": true
-        },
-        "xml2js": {
-          "version": "0.4.19",
-          "bundled": true,
-          "requires": {
-            "sax": ">=0.6.0",
-            "xmlbuilder": "~9.0.1"
-          }
-        },
-        "xmlbuilder": {
-          "version": "9.0.7",
-          "bundled": true
-        }
-      }
-    },
-    "@aws-cdk/aws-cloudfront": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudfront/-/aws-cloudfront-0.34.0.tgz",
-      "integrity": "sha512-3zRJlKYAl0Z2C5ayyG5QjCPVOyDjf2/cf5NBRI1jznSu5Q+Rloal6NPj9t55MywY/54IeuTEQSy/UbtLSnLeiw==",
-      "requires": {
-        "@aws-cdk/aws-certificatemanager": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-cloudwatch": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudwatch/-/aws-cloudwatch-0.34.0.tgz",
-      "integrity": "sha512-w8xWg4wA11g7MS/Cn5CFKv3R9egtsQbGSruoROLpLzI2HY5/MpZ0Is8Nnv2acTKY2unoCIexVo9Ee666NgTVdg==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ec2": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ec2/-/aws-ec2-0.34.0.tgz",
-      "integrity": "sha512-7LU3V8b00k8TXNT4j/WnC0qpAGk9LVvoRd0UgKJzrGTN6Cah0lnM5MpMirwfr0KwKeFL83NwgsCZwMJdV2hHNw==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ecr": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ecr/-/aws-ecr-0.34.0.tgz",
-      "integrity": "sha512-Q70M7NmqUuw9O3s3aO4nHwCkYJ0KWaxzKfz3Ng5AKgd1G9kDmH8kNrGSuQRefdXIkF2St00Zuq2HpnqEMR8l1g==",
-      "requires": {
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ecs": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ecs/-/aws-ecs-0.34.0.tgz",
-      "integrity": "sha512-UR8O509P4zjwrVA6IS4eednmUcbUVwvpTnyG2T76pHQ28StVXcGr9zBDO+l1iHSP83hrklAM+1uwaw9GgEj4gA==",
-      "requires": {
-        "@aws-cdk/assets-docker": "^0.34.0",
-        "@aws-cdk/aws-applicationautoscaling": "^0.34.0",
-        "@aws-cdk/aws-autoscaling": "^0.34.0",
-        "@aws-cdk/aws-autoscaling-hooktargets": "^0.34.0",
-        "@aws-cdk/aws-certificatemanager": "^0.34.0",
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-ecr": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancing": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-logs": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/aws-route53-targets": "^0.34.0",
-        "@aws-cdk/aws-secretsmanager": "^0.34.0",
-        "@aws-cdk/aws-servicediscovery": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-elasticloadbalancing": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-elasticloadbalancing/-/aws-elasticloadbalancing-0.34.0.tgz",
-      "integrity": "sha512-gUwOSuoHU4VR8DDIY+X+nRLVvZGGE9vJQH/f9iU5GuIoJGGLuYBpSGum8BP9wrjVfDjf9qHzadxINAaz4CoEKg==",
-      "requires": {
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-elasticloadbalancingv2": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-elasticloadbalancingv2/-/aws-elasticloadbalancingv2-0.34.0.tgz",
-      "integrity": "sha512-ImYrubUmxcxpAqChmxjJx4K8QQ3rWyhQrwnzMHQLSt9zQGoLV4SIiDC8LGpIJ/fYI7xKIj0cFUs2MLpxcTifvQ==",
-      "requires": {
-        "@aws-cdk/aws-certificatemanager": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-events": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-events/-/aws-events-0.34.0.tgz",
-      "integrity": "sha512-UeR9J/VeMN42LSfZvgwjGgl+JsPYl7ah3JLYBKBfxFf7Cee3oWPooJdjtzzmHIBsNkUybK8UJ5rFOxIP+o1sGg==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-iam": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-iam/-/aws-iam-0.34.0.tgz",
-      "integrity": "sha512-C/cCuh7O+UdFUtClzqFRkiO+Tb/8xHRMMM1f6trQJf2BqbJY2TYHBAc47CwJTjhA+1zb1hTW6axNDTFkv+NoZg==",
-      "requires": {
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/region-info": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-kms": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-kms/-/aws-kms-0.34.0.tgz",
-      "integrity": "sha512-p4UMsql0IbGgtbNkrYHlqoq6ne7dqKjIt4Xf3qGCWDAGiXWSlYntFHh6UBzKR0RzW6r0GODttSmypFolLkNUFw==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-lambda": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-lambda/-/aws-lambda-0.34.0.tgz",
-      "integrity": "sha512-llndnoPan/uDAoamQzxC5FCzV7nLIkKeBiVHMCo+aokiJsIaDvxmaLpY6PxVvqo+bw5mP/fQeivDOenvAOYlcA==",
-      "requires": {
-        "@aws-cdk/assets": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-logs": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-logs": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-logs/-/aws-logs-0.34.0.tgz",
-      "integrity": "sha512-A2SPBYBYgLv7BacCxHmFMwFuCxZKe4TRE+M7mDplng6S6Fmq803neyCTPrOgznSGzJYFtfDoacFULuAXJ2hanQ==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-route53": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-route53/-/aws-route53-0.34.0.tgz",
-      "integrity": "sha512-jf8SF4wppJsRPCoVmvd6/votGxlbibDqlGP26IGLztIurAZ3ddxdXLHobDIaj1Y+/+8O6FnpFclmO2LNtGXL2g==",
-      "requires": {
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-logs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-route53-targets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-route53-targets/-/aws-route53-targets-0.34.0.tgz",
-      "integrity": "sha512-ORDUa13KnbkBW1w+SGogZ1IvtitiBaoZX7gvwfkgDIfGwvuFi8cojVqd2CuOVfcjbXcUHe+Ul67ezC0A7NjznA==",
-      "requires": {
-        "@aws-cdk/aws-cloudfront": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-s3": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-s3/-/aws-s3-0.34.0.tgz",
-      "integrity": "sha512-TT1eQFI7cenFHphMtouPVlKTyEQk8bigHL5r6ljLewWWMSp+ai6PS0RECjfJZ9rDwKj0IwGmqq+1H6xjPnbJUQ==",
-      "requires": {
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-secretsmanager": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-secretsmanager/-/aws-secretsmanager-0.34.0.tgz",
-      "integrity": "sha512-2dUlGx5ulEjGMSBfJHoBGsI9NAz1kDfGkolFsJVmkVc9bDXt0Co3D976FTcVWraOYj5BnPPDLTwBnWQGaItp5Q==",
-      "requires": {
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-servicediscovery": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-servicediscovery/-/aws-servicediscovery-0.34.0.tgz",
-      "integrity": "sha512-qOdkH3w94ZEqvdHh7t8plJrHa2ei4brZJOMWWVhJMjhnRJtdc8YTxXfxm0SSp5Y7oA6UvtmiFXV3oT1/yTynEg==",
-      "requires": {
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-sns": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-sns/-/aws-sns-0.34.0.tgz",
-      "integrity": "sha512-p+Gk2Qa20irXlvP4k9xWrJslIcJsylD6IBPioLDJk17ZfOvMWqUEqUwAhM7Wvlk86JQ7tkwu2QVMohnbb9kCvA==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-sqs": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-sqs/-/aws-sqs-0.34.0.tgz",
-      "integrity": "sha512-hvBRlKIo6tIhSXhL9yR4O3OcocvkTB4cgCncIgmBo7SktUz6l8t9CpskOyIZP7ARP4jybk+uleHQ+RLjHtPJnA==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/cdk": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/cdk/-/cdk-0.34.0.tgz",
-      "integrity": "sha512-zir7bamhQcsJB2c1kBUHa3KhIAiHRpwv6UCPWXTCyzrc85M8JMXl2UQgcayq4dwJk5Tmeh4BMwQyYmz7Bf35wQ==",
-      "requires": {
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/cx-api": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/cx-api/-/cx-api-0.34.0.tgz",
-      "integrity": "sha512-0k+CHsAs5zIOin80r95iKG87moa7PuP8eWlBkjNS4r1CjMc5G45MOWbq/iOk+p+155y7fPqTbl3lPCwgek1doA==",
-      "requires": {
-        "semver": "^6.1.1"
-      },
-      "dependencies": {
-        "semver": {
-          "version": "6.1.1",
-          "bundled": true
-        }
-      }
-    },
-    "@aws-cdk/region-info": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/region-info/-/region-info-0.34.0.tgz",
-      "integrity": "sha512-XIm/Mh5LZpsknmrBU6U27Ov/+t7UL+d9GntY7A+lr5DIPOmrFZYlXGsL2C3fLMQAlvUciLFvTrfp2GBbytnnrg=="
-    },
-    "@types/node": {
-      "version": "8.10.49",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.49.tgz",
-      "integrity": "sha512-YX30JVx0PvSmJ3Eqr74fYLGeBxD+C7vIL20ek+GGGLJeUbVYRUW3EzyAXpIRA0K8c8o0UWqR/GwEFYiFoz1T8w==",
-      "dev": true
-    },
-    "typescript": {
-      "version": "3.5.1",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.1.tgz",
-      "integrity": "sha512-64HkdiRv1yYZsSe4xC1WVgamNigVYjlssIoaH2HcZF0+ijsk5YK2g0G34w9wJkze8+5ow4STd22AynfO6ZYYLw==",
-      "dev": true
-    }
-  }
-}
diff --git a/typescript/ecs/ecs-service-with-logging/package.json b/typescript/ecs/ecs-service-with-logging/package.json
index 09fa3b1f4..f2c9bbe5a 100644
--- a/typescript/ecs/ecs-service-with-logging/package.json
+++ b/typescript/ecs/ecs-service-with-logging/package.json
@@ -21,6 +21,6 @@
   "dependencies": {
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/ecs-service-with-task-networking/index.ts b/typescript/ecs/ecs-service-with-task-networking/index.ts
index 396000129..644505e3a 100644
--- a/typescript/ecs/ecs-service-with-task-networking/index.ts
+++ b/typescript/ecs/ecs-service-with-task-networking/index.ts
@@ -1,7 +1,6 @@
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
-import { Protocol } from '@aws-cdk/aws-ecs';
 
 // Based on https://aws.amazon.com/blogs/compute/introducing-cloud-native-networking-for-ecs-containers/
 const app = new cdk.App();
@@ -17,7 +16,7 @@ cluster.addCapacity('DefaultAutoScalingGroup', {
 
 // Create a task definition with its own elastic network interface
 const taskDefinition = new ecs.Ec2TaskDefinition(stack, 'nginx-awspvc', {
-  networkMode: ecs.NetworkMode.AwsVpc,
+  networkMode: ecs.NetworkMode.AWS_VPC,
 });
 
 const webContainer = taskDefinition.addContainer('nginx', {
@@ -29,7 +28,7 @@ const webContainer = taskDefinition.addContainer('nginx', {
 
 webContainer.addPortMappings({
   containerPort: 80,
-  protocol: Protocol.Tcp,
+  protocol: ecs.Protocol.TCP,
 });
 
 // Create a security group that allows HTTP traffic on port 80 for our containers without modifying the security group on the instance
@@ -38,7 +37,7 @@ const securityGroup = new ec2.SecurityGroup(stack, 'nginx--7623', {
   allowAllOutbound: false,
 });
 
-securityGroup.addIngressRule(new ec2.AnyIPv4(), new ec2.TcpPort(80));
+securityGroup.addIngressRule(ec2.Peer.anyIpv4(), ec2.Port.tcp(80));
 
 // Create the service
 new ecs.Ec2Service(stack, 'awsvpc-ecs-demo-service', {
diff --git a/typescript/ecs/ecs-service-with-task-networking/package.json b/typescript/ecs/ecs-service-with-task-networking/package.json
index 8e4a6aa3f..d7f0dd10d 100644
--- a/typescript/ecs/ecs-service-with-task-networking/package.json
+++ b/typescript/ecs/ecs-service-with-task-networking/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-elasticloadbalancingv2": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/ecs-service-with-task-placement/index.ts b/typescript/ecs/ecs-service-with-task-placement/index.ts
index 82ada5d1f..afcac0972 100644
--- a/typescript/ecs/ecs-service-with-task-placement/index.ts
+++ b/typescript/ecs/ecs-service-with-task-placement/index.ts
@@ -1,6 +1,6 @@
 import ecs = require('@aws-cdk/aws-ecs');
 import ec2 = require('@aws-cdk/aws-ec2');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 const app = new cdk.App();
 const stack = new cdk.Stack(app, 'aws-ecs-integ-ecs');
@@ -26,7 +26,7 @@ const container = taskDefinition.addContainer('web', {
 container.addPortMappings({
   containerPort: 80,
   hostPort: 8080,
-  protocol: ecs.Protocol.Tcp
+  protocol: ecs.Protocol.TCP
 });
 
 // Create Service
@@ -35,9 +35,10 @@ const service = new ecs.Ec2Service(stack, "Service", {
   taskDefinition,
 });
 
-// Specify binpack by memory and spread across availability zone as  placement strategies.
+// Specify binpack by memory and spread across availability zone as placement strategies.
 // To place randomly, call: service.placeRandomly()
-service.placePackedBy(ecs.BinPackResource.Memory);
-service.placeSpreadAcross(ecs.BuiltInAttributes.AvailabilityZone);
+service.addPlacementStrategies(
+  ecs.PlacementStrategy.packedBy(ecs.BinPackResource.MEMORY), 
+  ecs.PlacementStrategy.spreadAcross(ecs.BuiltInAttributes.AVAILABILITY_ZONE));
 
 app.synth();
diff --git a/typescript/ecs/ecs-service-with-task-placement/package.json b/typescript/ecs/ecs-service-with-task-placement/package.json
index 18f0eb77e..fd2417560 100644
--- a/typescript/ecs/ecs-service-with-task-placement/package.json
+++ b/typescript/ecs/ecs-service-with-task-placement/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-elasticloadbalancingv2": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/fargate-load-balanced-service/index.ts b/typescript/ecs/fargate-load-balanced-service/index.ts
index aa060b126..b473f6d1b 100644
--- a/typescript/ecs/fargate-load-balanced-service/index.ts
+++ b/typescript/ecs/fargate-load-balanced-service/index.ts
@@ -1,7 +1,7 @@
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
 import ecs_patterns = require('@aws-cdk/aws-ecs-patterns');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class BonjourFargate extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
diff --git a/typescript/ecs/fargate-load-balanced-service/package.json b/typescript/ecs/fargate-load-balanced-service/package.json
index 349fc1c68..ca873f8ee 100644
--- a/typescript/ecs/fargate-load-balanced-service/package.json
+++ b/typescript/ecs/fargate-load-balanced-service/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-ecs-patterns": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/fargate-service-with-auto-scaling/index.ts b/typescript/ecs/fargate-service-with-auto-scaling/index.ts
index abd23ff26..dbf6cbc04 100644
--- a/typescript/ecs/fargate-service-with-auto-scaling/index.ts
+++ b/typescript/ecs/fargate-service-with-auto-scaling/index.ts
@@ -1,7 +1,7 @@
 import ecs = require('@aws-cdk/aws-ecs');
 import ecs_patterns = require('@aws-cdk/aws-ecs-patterns');
 import ec2 = require('@aws-cdk/aws-ec2');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class AutoScalingFargateService extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
@@ -21,8 +21,8 @@ class AutoScalingFargateService extends cdk.Stack {
     const scaling = fargateService.service.autoScaleTaskCount({ maxCapacity: 2 });
     scaling.scaleOnCpuUtilization('CpuScaling', {
       targetUtilizationPercent: 50,
-      scaleInCooldownSec: 60,
-      scaleOutCooldownSec: 60
+      scaleInCooldown: cdk.Duration.seconds(60),
+      scaleOutCooldown: cdk.Duration.seconds(60)
     });
 
     new cdk.CfnOutput(this, 'LoadBalancerDNS', { value: fargateService.loadBalancer.loadBalancerDnsName });
diff --git a/typescript/ecs/fargate-service-with-auto-scaling/package-lock.json b/typescript/ecs/fargate-service-with-auto-scaling/package-lock.json
deleted file mode 100644
index 103f524b1..000000000
--- a/typescript/ecs/fargate-service-with-auto-scaling/package-lock.json
+++ /dev/null
@@ -1,569 +0,0 @@
-{
-  "name": "fargate-service-with-auto-scaling",
-  "version": "0.25.2",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "@aws-cdk/assets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets/-/assets-0.34.0.tgz",
-      "integrity": "sha512-nXAAFb6EKhdVcNseZQnjiYYrpzbJu8tVCfSJiIbi6WjYw+7jygexj7YkrZY1jRnCHUIqWcGD2LeCUx/k8yY4aQ==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0",
-        "minimatch": "^3.0.4"
-      },
-      "dependencies": {
-        "balanced-match": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "brace-expansion": {
-          "version": "1.1.11",
-          "bundled": true,
-          "requires": {
-            "balanced-match": "^1.0.0",
-            "concat-map": "0.0.1"
-          }
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true
-        },
-        "minimatch": {
-          "version": "3.0.4",
-          "bundled": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        }
-      }
-    },
-    "@aws-cdk/assets-docker": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets-docker/-/assets-docker-0.34.0.tgz",
-      "integrity": "sha512-SMuDqZtr8eirZsUXG8gskteXRXLJ5Jsb1us5pg8NtVPzF1drgu2iW/E8YlSP1QBZF20nqLfjMm7C1cEy/NxPHg==",
-      "requires": {
-        "@aws-cdk/assets": "^0.34.0",
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-ecr": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-applicationautoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-applicationautoscaling/-/aws-applicationautoscaling-0.34.0.tgz",
-      "integrity": "sha512-XjZJHGDEW77l6kFAPuId8unr6FYX0E0d/qUq7BmjQEbdW/3ljSlZeDQb5sObvHjR7eTpyhaNzLEfePM6A3x2fw==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling/-/aws-autoscaling-0.34.0.tgz",
-      "integrity": "sha512-B+JXGjBm9hwbm4GAe0nmGvrrNGkjNdF9UvMqk1O4cXYr7gabIOcbemWGU3i7sLYUEvcjEgQYA8s9KsxIhlp99w==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancing": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
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-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-servicediscovery": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-servicediscovery/-/aws-servicediscovery-0.34.0.tgz",
-      "integrity": "sha512-qOdkH3w94ZEqvdHh7t8plJrHa2ei4brZJOMWWVhJMjhnRJtdc8YTxXfxm0SSp5Y7oA6UvtmiFXV3oT1/yTynEg==",
-      "requires": {
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-sns": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-sns/-/aws-sns-0.34.0.tgz",
-      "integrity": "sha512-p+Gk2Qa20irXlvP4k9xWrJslIcJsylD6IBPioLDJk17ZfOvMWqUEqUwAhM7Wvlk86JQ7tkwu2QVMohnbb9kCvA==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-sqs": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-sqs/-/aws-sqs-0.34.0.tgz",
-      "integrity": "sha512-hvBRlKIo6tIhSXhL9yR4O3OcocvkTB4cgCncIgmBo7SktUz6l8t9CpskOyIZP7ARP4jybk+uleHQ+RLjHtPJnA==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-stepfunctions": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-stepfunctions/-/aws-stepfunctions-0.34.0.tgz",
-      "integrity": "sha512-3cBf8vI3OkZZV+7dOLOom7whj1/nfb6zqEHSc6eISKM0k7u2NNSlZ4qUb5a6MMViiavMxOK4ojko6V6oq4RDEw==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/cdk": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/cdk/-/cdk-0.34.0.tgz",
-      "integrity": "sha512-zir7bamhQcsJB2c1kBUHa3KhIAiHRpwv6UCPWXTCyzrc85M8JMXl2UQgcayq4dwJk5Tmeh4BMwQyYmz7Bf35wQ==",
-      "requires": {
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/cx-api": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/cx-api/-/cx-api-0.34.0.tgz",
-      "integrity": "sha512-0k+CHsAs5zIOin80r95iKG87moa7PuP8eWlBkjNS4r1CjMc5G45MOWbq/iOk+p+155y7fPqTbl3lPCwgek1doA==",
-      "requires": {
-        "semver": "^6.1.1"
-      },
-      "dependencies": {
-        "semver": {
-          "version": "6.1.1",
-          "bundled": true
-        }
-      }
-    },
-    "@aws-cdk/region-info": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/region-info/-/region-info-0.34.0.tgz",
-      "integrity": "sha512-XIm/Mh5LZpsknmrBU6U27Ov/+t7UL+d9GntY7A+lr5DIPOmrFZYlXGsL2C3fLMQAlvUciLFvTrfp2GBbytnnrg=="
-    },
-    "@types/node": {
-      "version": "8.10.49",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.49.tgz",
-      "integrity": "sha512-YX30JVx0PvSmJ3Eqr74fYLGeBxD+C7vIL20ek+GGGLJeUbVYRUW3EzyAXpIRA0K8c8o0UWqR/GwEFYiFoz1T8w==",
-      "dev": true
-    },
-    "typescript": {
-      "version": "3.5.1",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.1.tgz",
-      "integrity": "sha512-64HkdiRv1yYZsSe4xC1WVgamNigVYjlssIoaH2HcZF0+ijsk5YK2g0G34w9wJkze8+5ow4STd22AynfO6ZYYLw==",
-      "dev": true
-    }
-  }
-}
diff --git a/typescript/ecs/fargate-service-with-auto-scaling/package.json b/typescript/ecs/fargate-service-with-auto-scaling/package.json
index 71608d752..e1378e0d5 100644
--- a/typescript/ecs/fargate-service-with-auto-scaling/package.json
+++ b/typescript/ecs/fargate-service-with-auto-scaling/package.json
@@ -23,6 +23,6 @@
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-ecs-patterns": "*",
     "@aws-cdk/aws-elasticloadbalancingv2": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/fargate-service-with-local-image/index.ts b/typescript/ecs/fargate-service-with-local-image/index.ts
index 6a332e16b..a6b33933d 100644
--- a/typescript/ecs/fargate-service-with-local-image/index.ts
+++ b/typescript/ecs/fargate-service-with-local-image/index.ts
@@ -1,7 +1,7 @@
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
 import ecs_patterns = require('@aws-cdk/aws-ecs-patterns');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 import path = require('path');
 
 const app = new cdk.App();
@@ -18,9 +18,7 @@ const cluster = new ecs.Cluster(stack, 'Cluster', { vpc });
 // with the image from ECR.
 new ecs_patterns.LoadBalancedFargateService(stack, "FargateService", {
   cluster,
-  image: ecs.ContainerImage.fromAsset(stack, "local-image" , { 
-    directory: path.join(__dirname, 'local-image') 
-  })
+  image: ecs.ContainerImage.fromAsset(path.resolve(__dirname, 'local-image'))
 });
 
 app.synth();
diff --git a/typescript/ecs/fargate-service-with-local-image/package.json b/typescript/ecs/fargate-service-with-local-image/package.json
index 73345555d..8520dfd3f 100644
--- a/typescript/ecs/fargate-service-with-local-image/package.json
+++ b/typescript/ecs/fargate-service-with-local-image/package.json
@@ -22,6 +22,6 @@
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
     "@aws-cdk/aws-ecs-patterns": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }
diff --git a/typescript/ecs/fargate-service-with-logging/index.ts b/typescript/ecs/fargate-service-with-logging/index.ts
index f2df6ffe9..ecf3e2c79 100644
--- a/typescript/ecs/fargate-service-with-logging/index.ts
+++ b/typescript/ecs/fargate-service-with-logging/index.ts
@@ -1,6 +1,6 @@
 import ec2 = require('@aws-cdk/aws-ec2');
 import ecs = require('@aws-cdk/aws-ecs');
-import cdk = require('@aws-cdk/cdk');
+import cdk = require('@aws-cdk/core');
 
 class WillkommenFargate extends cdk.Stack {
   constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
@@ -10,13 +10,11 @@ class WillkommenFargate extends cdk.Stack {
     const cluster = new ecs.Cluster(this, 'Ec2Cluster', { vpc });
 
     // create a task definition with CloudWatch Logs
-    const logging = new ecs.AwsLogDriver(this, "AppLogging", {
-      streamPrefix: "myapp",
-    })
+    const logging = new ecs.AwsLogDriver({ streamPrefix: "myapp" })
 
     const taskDef = new ecs.FargateTaskDefinition(this, "MyTaskDefinition", {
-      memoryMiB: '512',
-      cpu: '256',
+      memoryLimitMiB: 512,
+      cpu: 256,
     })
     taskDef.addContainer("AppContainer", {
       image: ecs.ContainerImage.fromRegistry("amazon/amazon-ecs-sample"),
diff --git a/typescript/ecs/fargate-service-with-logging/package-lock.json b/typescript/ecs/fargate-service-with-logging/package-lock.json
deleted file mode 100644
index c86adc389..000000000
--- a/typescript/ecs/fargate-service-with-logging/package-lock.json
+++ /dev/null
@@ -1,481 +0,0 @@
-{
-  "name": "fargate-service-with-logging",
-  "version": "0.23.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "@aws-cdk/assets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets/-/assets-0.34.0.tgz",
-      "integrity": "sha512-nXAAFb6EKhdVcNseZQnjiYYrpzbJu8tVCfSJiIbi6WjYw+7jygexj7YkrZY1jRnCHUIqWcGD2LeCUx/k8yY4aQ==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0",
-        "minimatch": "^3.0.4"
-      },
-      "dependencies": {
-        "balanced-match": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "brace-expansion": {
-          "version": "1.1.11",
-          "bundled": true,
-          "requires": {
-            "balanced-match": "^1.0.0",
-            "concat-map": "0.0.1"
-          }
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true
-        },
-        "minimatch": {
-          "version": "3.0.4",
-          "bundled": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        }
-      }
-    },
-    "@aws-cdk/assets-docker": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/assets-docker/-/assets-docker-0.34.0.tgz",
-      "integrity": "sha512-SMuDqZtr8eirZsUXG8gskteXRXLJ5Jsb1us5pg8NtVPzF1drgu2iW/E8YlSP1QBZF20nqLfjMm7C1cEy/NxPHg==",
-      "requires": {
-        "@aws-cdk/assets": "^0.34.0",
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-ecr": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-applicationautoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-applicationautoscaling/-/aws-applicationautoscaling-0.34.0.tgz",
-      "integrity": "sha512-XjZJHGDEW77l6kFAPuId8unr6FYX0E0d/qUq7BmjQEbdW/3ljSlZeDQb5sObvHjR7eTpyhaNzLEfePM6A3x2fw==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling/-/aws-autoscaling-0.34.0.tgz",
-      "integrity": "sha512-B+JXGjBm9hwbm4GAe0nmGvrrNGkjNdF9UvMqk1O4cXYr7gabIOcbemWGU3i7sLYUEvcjEgQYA8s9KsxIhlp99w==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling-common": "^0.34.0",
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-ec2": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancing": "^0.34.0",
-        "@aws-cdk/aws-elasticloadbalancingv2": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling-common": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling-common/-/aws-autoscaling-common-0.34.0.tgz",
-      "integrity": "sha512-HmYDOACF1o3vR01IHgkY0BfXnZIFUCY8epBUUowYD5zbtqG2Cne/6TGaw9m7hBXJnuQmyGhvlPmtV+nW/aGnLQ==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-autoscaling-hooktargets": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-autoscaling-hooktargets/-/aws-autoscaling-hooktargets-0.34.0.tgz",
-      "integrity": "sha512-JSnA4Fk+9olF2Gx6JgKqfjwevt6q2Xku01c1k7zI9Z53Jru2RZ/sG56jAYZarbB0YH9mJy6sOqzWOu9s5EPnwA==",
-      "requires": {
-        "@aws-cdk/aws-autoscaling": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/aws-sqs": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-certificatemanager": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-certificatemanager/-/aws-certificatemanager-0.34.0.tgz",
-      "integrity": "sha512-tp0w0ifzlUPkaAYR9dJJZ8iwxgqucrRHXK5HoG5PY8WcBH1xSAIm6MtfP5R7Dh9s5hUwg1hz8wygEerN90SrzA==",
-      "requires": {
-        "@aws-cdk/aws-cloudformation": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-route53": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-cloudformation": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudformation/-/aws-cloudformation-0.34.0.tgz",
-      "integrity": "sha512-F9W53h4Ho//2YrdEgBj7JIXbYo/LT7V2FL33SK9guBHAxYVWWNipFcu/rvuZtKm/8te7F102b9RZGE42yfjKIg==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-lambda": "^0.34.0",
-        "@aws-cdk/aws-sns": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "aws-sdk": "^2.409.0"
-      },
-      "dependencies": {
-        "aws-sdk": {
-          "version": "2.469.0",
-          "bundled": true,
-          "requires": {
-            "buffer": "4.9.1",
-            "events": "1.1.1",
-            "ieee754": "1.1.8",
-            "jmespath": "0.15.0",
-            "querystring": "0.2.0",
-            "sax": "1.2.1",
-            "url": "0.10.3",
-            "uuid": "3.3.2",
-            "xml2js": "0.4.19"
-          }
-        },
-        "base64-js": {
-          "version": "1.3.0",
-          "bundled": true
-        },
-        "buffer": {
-          "version": "4.9.1",
-          "bundled": true,
-          "requires": {
-            "base64-js": "^1.0.2",
-            "ieee754": "^1.1.4",
-            "isarray": "^1.0.0"
-          }
-        },
-        "events": {
-          "version": "1.1.1",
-          "bundled": true
-        },
-        "ieee754": {
-          "version": "1.1.8",
-          "bundled": true
-        },
-        "isarray": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "jmespath": {
-          "version": "0.15.0",
-          "bundled": true
-        },
-        "punycode": {
-          "version": "1.3.2",
-          "bundled": true
-        },
-        "querystring": {
-          "version": "0.2.0",
-          "bundled": true
-        },
-        "sax": {
-          "version": "1.2.1",
-          "bundled": true
-        },
-        "url": {
-          "version": "0.10.3",
-          "bundled": true,
-          "requires": {
-            "punycode": "1.3.2",
-            "querystring": "0.2.0"
-          }
-        },
-        "uuid": {
-          "version": "3.3.2",
-          "bundled": true
-        },
-        "xml2js": {
-          "version": "0.4.19",
-          "bundled": true,
-          "requires": {
-            "sax": ">=0.6.0",
-            "xmlbuilder": "~9.0.1"
-          }
-        },
-        "xmlbuilder": {
-          "version": "9.0.7",
-          "bundled": true
-        }
-      }
-    },
-    "@aws-cdk/aws-cloudfront": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudfront/-/aws-cloudfront-0.34.0.tgz",
-      "integrity": "sha512-3zRJlKYAl0Z2C5ayyG5QjCPVOyDjf2/cf5NBRI1jznSu5Q+Rloal6NPj9t55MywY/54IeuTEQSy/UbtLSnLeiw==",
-      "requires": {
-        "@aws-cdk/aws-certificatemanager": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/aws-kms": "^0.34.0",
-        "@aws-cdk/aws-s3": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-cloudwatch": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-cloudwatch/-/aws-cloudwatch-0.34.0.tgz",
-      "integrity": "sha512-w8xWg4wA11g7MS/Cn5CFKv3R9egtsQbGSruoROLpLzI2HY5/MpZ0Is8Nnv2acTKY2unoCIexVo9Ee666NgTVdg==",
-      "requires": {
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ec2": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ec2/-/aws-ec2-0.34.0.tgz",
-      "integrity": "sha512-7LU3V8b00k8TXNT4j/WnC0qpAGk9LVvoRd0UgKJzrGTN6Cah0lnM5MpMirwfr0KwKeFL83NwgsCZwMJdV2hHNw==",
-      "requires": {
-        "@aws-cdk/aws-cloudwatch": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0",
-        "@aws-cdk/cx-api": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ecr": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ecr/-/aws-ecr-0.34.0.tgz",
-      "integrity": "sha512-Q70M7NmqUuw9O3s3aO4nHwCkYJ0KWaxzKfz3Ng5AKgd1G9kDmH8kNrGSuQRefdXIkF2St00Zuq2HpnqEMR8l1g==",
-      "requires": {
-        "@aws-cdk/aws-events": "^0.34.0",
-        "@aws-cdk/aws-iam": "^0.34.0",
-        "@aws-cdk/cdk": "^0.34.0"
-      }
-    },
-    "@aws-cdk/aws-ecs": {
-      "version": "0.34.0",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/aws-ecs/-/aws-ecs-0.34.0.tgz",
-      "integrity": "sha512-UR8O509P4zjwrVA6IS4eednmUcbUVwvpTnyG2T76pHQ28StVXcGr9zBDO+l1iHSP83hrklAM+1uwaw9GgEj4gA==",
-      "requires": {
-        "@aws-cdk/assets-docker": "^0.34.0",
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diff --git a/typescript/ecs/fargate-service-with-logging/package.json b/typescript/ecs/fargate-service-with-logging/package.json
index 0ee8ce81e..39cdb675a 100644
--- a/typescript/ecs/fargate-service-with-logging/package.json
+++ b/typescript/ecs/fargate-service-with-logging/package.json
@@ -21,6 +21,6 @@
   "dependencies": {
     "@aws-cdk/aws-ec2": "*",
     "@aws-cdk/aws-ecs": "*",
-    "@aws-cdk/cdk": "*"
+    "@aws-cdk/core": "*"
   }
 }