diff --git a/cdk/package.json b/cdk/package.json
index f82bdd45..66b1c816 100644
--- a/cdk/package.json
+++ b/cdk/package.json
@@ -29,9 +29,9 @@
     "eslint-plugin-prettier": "^3.3.1",
     "jest": "^26.6.3",
     "prettier": "^2.2.0",
-    "ts-jest": "^26.4.4",
+    "ts-jest": "^26.5.3",
     "ts-node": "^9.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~4.2.3"
   },
   "dependencies": {
     "@aws-cdk/core": "1.90.0",
diff --git a/cdk/yarn.lock b/cdk/yarn.lock
index 9e1bb013..73d2bb08 100644
--- a/cdk/yarn.lock
+++ b/cdk/yarn.lock
@@ -1372,7 +1372,7 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@26.x", "@types/jest@^26.0.20":
+"@types/jest@^26.0.20":
   version "26.0.20"
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.20.tgz#cd2f2702ecf69e86b586e1f5223a60e454056307"
   integrity sha512-9zi2Y+5USJRxd0FsahERhBwlcvFh6D2GLQnY2FH2BzK8J9s9omvNHIbvABwIluXa0fD8XVKMLTO0aOEuUfACAA==
@@ -5657,12 +5657,11 @@ tr46@^2.0.2:
   dependencies:
     punycode "^2.1.1"
 
-ts-jest@^26.4.4:
-  version "26.5.1"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.5.1.tgz#4d53ee4481552f57c1624f0bd3425c8b17996150"
-  integrity sha512-G7Rmo3OJMvlqE79amJX8VJKDiRcd7/r61wh9fnvvG8cAjhA9edklGw/dCxRSQmfZ/z8NDums5srSVgwZos1qfg==
+ts-jest@^26.5.3:
+  version "26.5.3"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.5.3.tgz#a6ee00ba547be3b09877550df40a1465d0295554"
+  integrity sha512-nBiiFGNvtujdLryU7MiMQh1iPmnZ/QvOskBbD2kURiI1MwqvxlxNnaAB/z9TbslMqCsSbu5BXvSSQPc5tvHGeA==
   dependencies:
-    "@types/jest" "26.x"
     bs-logger "0.x"
     buffer-from "1.x"
     fast-json-stable-stringify "2.x"
@@ -5766,10 +5765,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@~4.1.3:
-  version "4.1.5"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.5.tgz#123a3b214aaff3be32926f0d8f1f6e704eb89a72"
-  integrity sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==
+typescript@~4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.3.tgz#39062d8019912d43726298f09493d598048c1ce3"
+  integrity sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==
 
 union-value@^1.0.0:
   version "1.0.1"