diff --git a/packages/@aws-cdk/cfnspec/CHANGELOG.md b/packages/@aws-cdk/cfnspec/CHANGELOG.md
index 65b0698341e5f..886903e147257 100644
--- a/packages/@aws-cdk/cfnspec/CHANGELOG.md
+++ b/packages/@aws-cdk/cfnspec/CHANGELOG.md
@@ -1,3 +1,32 @@
+# CloudFormation Resource Specification v2.30.0
+
+## New Resource Types
+
+
+## Attribute Changes
+
+
+## Property Changes
+
+
+## Property Type Changes
+
+* AWS::Batch::JobDefinition.ResourceRequirement (__added__)
+* AWS::Batch::JobDefinition.ContainerProperties ResourceRequirements (__added__)
+* Tag Key.Documentation (__changed__)
+  * Old: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iotanalytics-datastore-tag.html#cfn-iotanalytics-datastore-tag-key
+  * New: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dms-endpoint-tag.html#cfn-dms-endpoint-tag-key
+* Tag Key.Required (__changed__)
+  * Old: true
+  * New: false
+* Tag Value.Documentation (__changed__)
+  * Old: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iotanalytics-datastore-tag.html#cfn-iotanalytics-datastore-tag-value
+  * New: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dms-endpoint-tag.html#cfn-dms-endpoint-tag-value
+* Tag Value.Required (__changed__)
+  * Old: true
+  * New: false
+
+
 # CloudFormation Resource Specification v2.29.0
 
 ## New Resource Types
diff --git a/packages/@aws-cdk/cfnspec/spec-source/000_CloudFormationResourceSpecification.json b/packages/@aws-cdk/cfnspec/spec-source/000_CloudFormationResourceSpecification.json
index 45faf9c48683c..97e891618a32d 100644
--- a/packages/@aws-cdk/cfnspec/spec-source/000_CloudFormationResourceSpecification.json
+++ b/packages/@aws-cdk/cfnspec/spec-source/000_CloudFormationResourceSpecification.json
@@ -2912,6 +2912,13 @@
           "Required": false,
           "UpdateType": "Mutable"
         },
+        "ResourceRequirements": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-containerproperties.html#cfn-batch-jobdefinition-containerproperties-resourcerequirements",
+          "ItemType": "ResourceRequirement",
+          "Required": false,
+          "Type": "List",
+          "UpdateType": "Mutable"
+        },
         "Ulimits": {
           "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-containerproperties.html#cfn-batch-jobdefinition-containerproperties-ulimits",
           "ItemType": "Ulimit",
@@ -3021,6 +3028,23 @@
         }
       }
     },
+    "AWS::Batch::JobDefinition.ResourceRequirement": {
+      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-resourcerequirement.html",
+      "Properties": {
+        "Type": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-resourcerequirement.html#cfn-batch-jobdefinition-resourcerequirement-type",
+          "PrimitiveType": "String",
+          "Required": false,
+          "UpdateType": "Mutable"
+        },
+        "Value": {
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-resourcerequirement.html#cfn-batch-jobdefinition-resourcerequirement-value",
+          "PrimitiveType": "String",
+          "Required": false,
+          "UpdateType": "Mutable"
+        }
+      }
+    },
     "AWS::Batch::JobDefinition.RetryStrategy": {
       "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-batch-jobdefinition-retrystrategy.html",
       "Properties": {
@@ -20576,24 +20600,24 @@
       }
     },
     "Tag": {
-      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iotanalytics-datastore-tag.html",
+      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dms-endpoint-tag.html",
       "Properties": {
         "Key": {
-          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iotanalytics-datastore-tag.html#cfn-iotanalytics-datastore-tag-key",
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dms-endpoint-tag.html#cfn-dms-endpoint-tag-key",
           "PrimitiveType": "String",
-          "Required": true,
+          "Required": false,
           "UpdateType": "Mutable"
         },
         "Value": {
-          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iotanalytics-datastore-tag.html#cfn-iotanalytics-datastore-tag-value",
+          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dms-endpoint-tag.html#cfn-dms-endpoint-tag-value",
           "PrimitiveType": "String",
-          "Required": true,
+          "Required": false,
           "UpdateType": "Mutable"
         }
       }
     }
   },
-  "ResourceSpecificationVersion": "2.29.0",
+  "ResourceSpecificationVersion": "2.30.0",
   "ResourceTypes": {
     "AWS::AmazonMQ::Broker": {
       "Attributes": {