diff --git a/packages/aws-cdk/lib/init-templates/app/javascript/package.template.json b/packages/aws-cdk/lib/init-templates/app/javascript/package.template.json
index 63e983e38a92e..928d7adcd9108 100644
--- a/packages/aws-cdk/lib/init-templates/app/javascript/package.template.json
+++ b/packages/aws-cdk/lib/init-templates/app/javascript/package.template.json
@@ -11,7 +11,6 @@
   },
   "devDependencies": {
     "@aws-cdk/assert": "^%cdk-version%",
-    "@types/jest": "^24.0.18",
     "aws-cdk": "^%cdk-version%",
     "jest": "^24.9.0"
   },
diff --git a/packages/aws-cdk/lib/init-templates/app/typescript/package.template.json b/packages/aws-cdk/lib/init-templates/app/typescript/package.template.json
index c78f0a4e5eb36..a723f2f1b87b1 100644
--- a/packages/aws-cdk/lib/init-templates/app/typescript/package.template.json
+++ b/packages/aws-cdk/lib/init-templates/app/typescript/package.template.json
@@ -12,16 +12,16 @@
   },
   "devDependencies": {
     "@aws-cdk/assert": "^%cdk-version%",
-    "@types/jest": "^24.0.18",
-    "@types/node": "10.3.0",
+    "@types/jest": "^24.0.22",
+    "@types/node": "10.17.5",
     "jest": "^24.9.0",
-    "ts-jest": "^24.0.2",
+    "ts-jest": "^24.1.0",
     "aws-cdk": "^%cdk-version%",
     "ts-node": "^8.1.0",
-    "typescript": "~3.6.2"
+    "typescript": "~3.7.2"
   },
   "dependencies": {
     "@aws-cdk/core": "^%cdk-version%",
-    "source-map-support": "^0.5.9"
+    "source-map-support": "^0.5.16"
   }
 }
diff --git a/packages/aws-cdk/lib/init-templates/app/typescript/tsconfig.json b/packages/aws-cdk/lib/init-templates/app/typescript/tsconfig.json
index 3f61627ac6aab..03c16d26a637c 100644
--- a/packages/aws-cdk/lib/init-templates/app/typescript/tsconfig.json
+++ b/packages/aws-cdk/lib/init-templates/app/typescript/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "target":"ES2018",
     "module": "commonjs",
-    "lib": ["es2016", "es2017.object", "es2017.string"],
+    "lib": ["es2018"],
     "declaration": true,
     "strict": true,
     "noImplicitAny": true,
diff --git a/packages/aws-cdk/lib/init-templates/lib/typescript/package.template.json b/packages/aws-cdk/lib/init-templates/lib/typescript/package.template.json
index c69f12ba8fa92..7632beee7089f 100644
--- a/packages/aws-cdk/lib/init-templates/lib/typescript/package.template.json
+++ b/packages/aws-cdk/lib/init-templates/lib/typescript/package.template.json
@@ -10,11 +10,11 @@
   },
   "devDependencies": {
     "@aws-cdk/assert": "^%cdk-version%",
-    "@types/jest": "^24.0.18",
-    "@types/node": "10.3.0",
+    "@types/jest": "^24.0.22",
+    "@types/node": "10.17.5",
     "jest": "^24.9.0",
-    "ts-jest": "^24.0.2",
-    "typescript": "~3.6.2"
+    "ts-jest": "^24.1.0",
+    "typescript": "~3.7.2"
   },
   "peerDependencies": {
     "@aws-cdk/core": "^%cdk-version%"
diff --git a/packages/aws-cdk/lib/init-templates/lib/typescript/tsconfig.json b/packages/aws-cdk/lib/init-templates/lib/typescript/tsconfig.json
index d28f454dcf456..bb250aba2e496 100644
--- a/packages/aws-cdk/lib/init-templates/lib/typescript/tsconfig.json
+++ b/packages/aws-cdk/lib/init-templates/lib/typescript/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "target":"ES2018",
     "module": "commonjs",
-    "lib": ["es2016", "es2017.object", "es2017.string"],
+    "lib": ["es2018"],
     "declaration": true,
     "strict": true,
     "noImplicitAny": true,
diff --git a/packages/aws-cdk/lib/init-templates/sample-app/javascript/package.template.json b/packages/aws-cdk/lib/init-templates/sample-app/javascript/package.template.json
index 98ec832b6dacb..d2ff5e11a6eec 100644
--- a/packages/aws-cdk/lib/init-templates/sample-app/javascript/package.template.json
+++ b/packages/aws-cdk/lib/init-templates/sample-app/javascript/package.template.json
@@ -11,8 +11,6 @@
   },
   "devDependencies": {
     "@aws-cdk/assert": "^%cdk-version%",
-    "@types/node": "8.10.54",
-    "@types/jest": "^24.0.18",
     "aws-cdk": "^%cdk-version%",
     "jest": "^24.9.0"
   },
diff --git a/packages/aws-cdk/lib/init-templates/sample-app/typescript/package.template.json b/packages/aws-cdk/lib/init-templates/sample-app/typescript/package.template.json
index 4c89280e1eee4..b6285945b42dd 100644
--- a/packages/aws-cdk/lib/init-templates/sample-app/typescript/package.template.json
+++ b/packages/aws-cdk/lib/init-templates/sample-app/typescript/package.template.json
@@ -12,13 +12,13 @@
   },
   "devDependencies": {
     "aws-cdk": "^%cdk-version%",
-    "@aws-cdk/assert": "^1.6.1",
-    "@types/jest": "^24.0.18",
-    "@types/node": "10.3.0",
+    "@aws-cdk/assert": "^%cdk-version%",
+    "@types/jest": "^24.0.22",
+    "@types/node": "10.17.5",
     "jest": "^24.9.0",
-    "ts-jest": "^24.0.2",
+    "ts-jest": "^24.1.0",
     "ts-node": "^8.1.0",
-    "typescript": "~3.6.2"
+    "typescript": "~3.7.2"
   },
   "dependencies": {
     "@aws-cdk/aws-sns": "^%cdk-version%",
diff --git a/packages/aws-cdk/lib/init-templates/sample-app/typescript/tsconfig.json b/packages/aws-cdk/lib/init-templates/sample-app/typescript/tsconfig.json
index 3f61627ac6aab..03c16d26a637c 100644
--- a/packages/aws-cdk/lib/init-templates/sample-app/typescript/tsconfig.json
+++ b/packages/aws-cdk/lib/init-templates/sample-app/typescript/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "target":"ES2018",
     "module": "commonjs",
-    "lib": ["es2016", "es2017.object", "es2017.string"],
+    "lib": ["es2018"],
     "declaration": true,
     "strict": true,
     "noImplicitAny": true,