diff --git a/packages/@aws-cdk/cx-api/package-lock.json b/packages/@aws-cdk/cx-api/package-lock.json
index fa6bfa233b7c2..5e65335acc4f3 100644
--- a/packages/@aws-cdk/cx-api/package-lock.json
+++ b/packages/@aws-cdk/cx-api/package-lock.json
@@ -473,9 +473,9 @@
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     },
     "@types/semver": {
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-      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.1.tgz",
-      "integrity": "sha512-ffCdcrEE5h8DqVxinQjo+2d1q+FV5z7iNtPofw3JsrltSoSVlOGaW0rY8XxtO9XukdTn8TaCGWmk2VFGhI70mg==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.2.tgz",
+      "integrity": "sha512-G1Ggy7/9Nsa1Jt2yiBR2riEuyK2DFNnqow6R7cromXPMNynackRY1vqFTLz/gwnef1LHokbXThcPhqMRjUbkpQ==",
       "dev": true
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@@ -902,6 +902,10 @@
       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
       "dev": true
     },
+    "cdk-build-tools": {
+      "version": "file:../../../tools/cdk-build-tools",
+      "dev": true
+    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -3755,6 +3759,10 @@
         "find-up": "^3.0.0"
       }
     },
+    "pkglint": {
+      "version": "file:../../../tools/pkglint",
+      "dev": true
+    },
     "pn": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/pn/-/pn-1.1.0.tgz",
@@ -4855,14 +4863,6 @@
         "camelcase": "^5.0.0",
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       }
-    },
-    "cdk-build-tools": {
-      "version": "file:../../../tools/cdk-build-tools",
-      "dev": true
-    },
-    "pkglint": {
-      "version": "file:../../../tools/pkglint",
-      "dev": true
     }
   }
 }
diff --git a/packages/@aws-cdk/cx-api/package.json b/packages/@aws-cdk/cx-api/package.json
index 451d1f74ba3da..5219aa0167fb9 100644
--- a/packages/@aws-cdk/cx-api/package.json
+++ b/packages/@aws-cdk/cx-api/package.json
@@ -61,7 +61,7 @@
   "license": "Apache-2.0",
   "devDependencies": {
     "@types/jest": "^24.0.18",
-    "@types/semver": "^6.0.1",
+    "@types/semver": "^6.0.2",
     "cdk-build-tools": "file:../../../tools/cdk-build-tools",
     "jest": "^24.9.0",
     "pkglint": "file:../../../tools/pkglint"
diff --git a/packages/aws-cdk/package-lock.json b/packages/aws-cdk/package-lock.json
index dac3d5f8e40ac..7149e74d38ce1 100644
--- a/packages/aws-cdk/package-lock.json
+++ b/packages/aws-cdk/package-lock.json
@@ -4,6 +4,75 @@
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
+  "@aws-cdk/cfnspec": {
+   "version": "1.6.1",
+   "resolved": "https://registry.npmjs.org/@aws-cdk/cfnspec/-/cfnspec-1.6.1.tgz",
+   "integrity": "sha512-fKidLYmr/mnZExKKmKjCPU50yRMQW8GRktEHINKUmZ8NDhiXFdSgSbkLEsoVTujeH2U/ivcUEG82KJa5/VcPKA==",
+   "requires": {
+    "md5": "^2.2.1"
+   }
+  },
+  "@aws-cdk/cloudformation-diff": {
+   "version": "1.6.1",
+   "resolved": "https://registry.npmjs.org/@aws-cdk/cloudformation-diff/-/cloudformation-diff-1.6.1.tgz",
+   "integrity": "sha512-3nrw2bu7AQay22kv3AiDvRH4cgxszHh+hp9y6/hCA62+8XAkTXit58G6aONZAPrTbqd0c3boOh+sxZD7KD6wbQ==",
+   "requires": {
+    "@aws-cdk/cfnspec": "^1.6.1",
+    "@aws-cdk/cx-api": "^1.6.1",
+    "colors": "^1.3.3",
+    "diff": "^4.0.1",
+    "fast-deep-equal": "^2.0.1",
+    "source-map-support": "^0.5.13",
+    "string-width": "^4.1.0",
+    "table": "^5.4.5"
+   },
+   "dependencies": {
+    "diff": {
+     "version": "4.0.1",
+     "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
+     "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q=="
+    },
+    "emoji-regex": {
+     "version": "8.0.0",
+     "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+     "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
+    },
+    "is-fullwidth-code-point": {
+     "version": "3.0.0",
+     "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
+     "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg=="
+    },
+    "string-width": {
+     "version": "4.1.0",
+     "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.1.0.tgz",
+     "integrity": "sha512-NrX+1dVVh+6Y9dnQ19pR0pP4FiEIlUvdTGn8pw6CKTNq5sgib2nIhmUNT5TAmhWmvKr3WcxBcP3E8nWezuipuQ==",
+     "requires": {
+      "emoji-regex": "^8.0.0",
+      "is-fullwidth-code-point": "^3.0.0",
+      "strip-ansi": "^5.2.0"
+     }
+    }
+   }
+  },
+  "@aws-cdk/cx-api": {
+   "version": "1.6.1",
+   "resolved": "https://registry.npmjs.org/@aws-cdk/cx-api/-/cx-api-1.6.1.tgz",
+   "integrity": "sha512-3iaJnuJhRYeHsP/3+L+1fcEfmZ8WnP9s7Dztg1FLaqQK6Tss1MbLEbhHwjADYsEAVdZUL0u5twjmCOviKfNHbg==",
+   "requires": {
+    "semver": "^6.3.0"
+   },
+   "dependencies": {
+    "semver": {
+     "version": "6.3.0",
+     "bundled": true
+    }
+   }
+  },
+  "@aws-cdk/region-info": {
+   "version": "1.6.1",
+   "resolved": "https://registry.npmjs.org/@aws-cdk/region-info/-/region-info-1.6.1.tgz",
+   "integrity": "sha512-FEt9GubTQ39xm84gkMhV67HuKLcu7oE7sRII+7MICShnT8dI+r0KYFMTbp9GOYtT6v5aWrc+hNB8bHltiBwgDg=="
+  },
   "@babel/runtime": {
    "version": "7.5.5",
    "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.5.5.tgz",
@@ -150,9 +219,9 @@
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   },
   "@types/semver": {
-   "version": "6.0.1",
-   "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.1.tgz",
-   "integrity": "sha512-ffCdcrEE5h8DqVxinQjo+2d1q+FV5z7iNtPofw3JsrltSoSVlOGaW0rY8XxtO9XukdTn8TaCGWmk2VFGhI70mg==",
+   "version": "6.0.2",
+   "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.2.tgz",
+   "integrity": "sha512-G1Ggy7/9Nsa1Jt2yiBR2riEuyK2DFNnqow6R7cromXPMNynackRY1vqFTLz/gwnef1LHokbXThcPhqMRjUbkpQ==",
    "dev": true
   },
   "@types/sinon": {
@@ -447,6 +516,15 @@
    "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
    "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
   },
+  "cdk-build-tools": {
+   "version": "file:../../tools/cdk-build-tools",
+   "dev": true
+  },
+  "charenc": {
+   "version": "0.0.2",
+   "resolved": "https://registry.npmjs.org/charenc/-/charenc-0.0.2.tgz",
+   "integrity": "sha1-wKHS86cJLgN3S/qD8UwPxXkKhmc="
+  },
   "cli-color": {
    "version": "0.1.7",
    "resolved": "https://registry.npmjs.org/cli-color/-/cli-color-0.1.7.tgz",
@@ -555,6 +633,11 @@
     "readable-stream": "^3.4.0"
    }
   },
+  "crypt": {
+   "version": "0.0.2",
+   "resolved": "https://registry.npmjs.org/crypt/-/crypt-0.0.2.tgz",
+   "integrity": "sha1-iNf/fsDfuG9xPch7u0LQRNPmxBs="
+  },
   "dashdash": {
    "version": "1.14.1",
    "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -988,6 +1071,11 @@
    "resolved": "https://registry.npmjs.org/ip/-/ip-1.1.5.tgz",
    "integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo="
   },
+  "is-buffer": {
+   "version": "1.1.6",
+   "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
+   "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w=="
+  },
   "is-fullwidth-code-point": {
    "version": "2.0.0",
    "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
@@ -1193,6 +1281,16 @@
     "yallist": "^2.1.2"
    }
   },
+  "md5": {
+   "version": "2.2.1",
+   "resolved": "https://registry.npmjs.org/md5/-/md5-2.2.1.tgz",
+   "integrity": "sha1-U6s41f48iJG6RlMp6iP6wFQBJvk=",
+   "requires": {
+    "charenc": "~0.0.1",
+    "crypt": "~0.0.1",
+    "is-buffer": "~1.1.1"
+   }
+  },
   "mime-db": {
    "version": "1.40.0",
    "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
@@ -1370,6 +1468,10 @@
    "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
    "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY="
   },
+  "pkglint": {
+   "version": "file:../../tools/pkglint",
+   "dev": true
+  },
   "prelude-ls": {
    "version": "1.1.2",
    "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz",
@@ -1920,14 +2022,6 @@
     "compress-commons": "^2.1.1",
     "readable-stream": "^3.4.0"
    }
-  },
-  "cdk-build-tools": {
-   "version": "file:../../tools/cdk-build-tools",
-   "dev": true
-  },
-  "pkglint": {
-   "version": "file:../../tools/pkglint",
-   "dev": true
   }
  }
 }
diff --git a/packages/aws-cdk/package.json b/packages/aws-cdk/package.json
index 9b455deaab8b0..a797ccc0e6f18 100644
--- a/packages/aws-cdk/package.json
+++ b/packages/aws-cdk/package.json
@@ -44,7 +44,7 @@
     "@types/mockery": "^1.4.29",
     "@types/node": "^8.10.50",
     "@types/request": "^2.48.2",
-    "@types/semver": "^6.0.1",
+    "@types/semver": "^6.0.2",
     "@types/sinon": "^7.0.13",
     "@types/table": "^4.0.6",
     "@types/uuid": "^3.4.5",
diff --git a/tools/pkglint/package-lock.json b/tools/pkglint/package-lock.json
index a01c814268869..59220886172b0 100644
--- a/tools/pkglint/package-lock.json
+++ b/tools/pkglint/package-lock.json
@@ -29,9 +29,9 @@
       "dev": true
     },
     "@types/semver": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.1.tgz",
-      "integrity": "sha512-ffCdcrEE5h8DqVxinQjo+2d1q+FV5z7iNtPofw3JsrltSoSVlOGaW0rY8XxtO9XukdTn8TaCGWmk2VFGhI70mg==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.0.2.tgz",
+      "integrity": "sha512-G1Ggy7/9Nsa1Jt2yiBR2riEuyK2DFNnqow6R7cromXPMNynackRY1vqFTLz/gwnef1LHokbXThcPhqMRjUbkpQ==",
       "dev": true
     },
     "@types/yargs": {
diff --git a/tools/pkglint/package.json b/tools/pkglint/package.json
index b876737f46fa8..11dde3caa6132 100644
--- a/tools/pkglint/package.json
+++ b/tools/pkglint/package.json
@@ -36,7 +36,7 @@
   "devDependencies": {
     "@types/colors": "^1.2.1",
     "@types/fs-extra": "^8.0.0",
-    "@types/semver": "^6.0.1",
+    "@types/semver": "^6.0.2",
     "@types/yargs": "^13.0.2"
   },
   "dependencies": {