diff --git a/packages/@aws-cdk/assert/package.json b/packages/@aws-cdk/assert/package.json
index f6ef917883eca..2bad5d64de9cb 100644
--- a/packages/@aws-cdk/assert/package.json
+++ b/packages/@aws-cdk/assert/package.json
@@ -33,7 +33,7 @@
     "cdk-build-tools": "0.0.0",
     "jest": "^25.5.4",
     "pkglint": "0.0.0",
-    "ts-jest": "^25.4.0"
+    "ts-jest": "^25.5.0"
   },
   "dependencies": {
     "@aws-cdk/cloudformation-diff": "0.0.0",
diff --git a/packages/@aws-cdk/aws-dynamodb/package.json b/packages/@aws-cdk/aws-dynamodb/package.json
index 2d50ac5b25a2a..4f6b62f985014 100644
--- a/packages/@aws-cdk/aws-dynamodb/package.json
+++ b/packages/@aws-cdk/aws-dynamodb/package.json
@@ -72,7 +72,7 @@
     "jest": "^25.5.4",
     "pkglint": "0.0.0",
     "sinon": "^9.0.2",
-    "ts-jest": "^25.4.0"
+    "ts-jest": "^25.5.0"
   },
   "dependencies": {
     "@aws-cdk/aws-applicationautoscaling": "0.0.0",
diff --git a/packages/@aws-cdk/aws-sam/package.json b/packages/@aws-cdk/aws-sam/package.json
index a4970eae21ea1..3190eb0afba88 100644
--- a/packages/@aws-cdk/aws-sam/package.json
+++ b/packages/@aws-cdk/aws-sam/package.json
@@ -69,7 +69,7 @@
     "cfn2ts": "0.0.0",
     "jest": "^25.5.4",
     "pkglint": "0.0.0",
-    "ts-jest": "^25.4.0"
+    "ts-jest": "^25.5.0"
   },
   "dependencies": {
     "@aws-cdk/core": "0.0.0",
diff --git a/packages/@aws-cdk/cloudformation-diff/package.json b/packages/@aws-cdk/cloudformation-diff/package.json
index 1650ecdd55c0f..6b9c9cf2a39fe 100644
--- a/packages/@aws-cdk/cloudformation-diff/package.json
+++ b/packages/@aws-cdk/cloudformation-diff/package.json
@@ -45,7 +45,7 @@
     "fast-check": "^1.24.2",
     "jest": "^25.5.4",
     "pkglint": "0.0.0",
-    "ts-jest": "^25.4.0"
+    "ts-jest": "^25.5.0"
   },
   "repository": {
     "url": "https://github.com/aws/aws-cdk.git",
diff --git a/packages/@monocdk-experiment/assert/package.json b/packages/@monocdk-experiment/assert/package.json
index 582adaaf07524..7b4ef8901ac8e 100644
--- a/packages/@monocdk-experiment/assert/package.json
+++ b/packages/@monocdk-experiment/assert/package.json
@@ -47,7 +47,7 @@
     "cdk-build-tools": "0.0.0",
     "jest": "^25.5.4",
     "pkglint": "0.0.0",
-    "ts-jest": "^25.4.0",
+    "ts-jest": "^25.5.0",
     "@monocdk-experiment/rewrite-imports": "0.0.0",
     "monocdk-experiment": "0.0.0",
     "constructs": "^3.0.2"
diff --git a/packages/aws-cdk/package.json b/packages/aws-cdk/package.json
index 9df8c1f32e053..ec9c645e2e321 100644
--- a/packages/aws-cdk/package.json
+++ b/packages/aws-cdk/package.json
@@ -58,7 +58,7 @@
     "mockery": "^2.1.0",
     "pkglint": "0.0.0",
     "sinon": "^9.0.2",
-    "ts-jest": "^25.4.0",
+    "ts-jest": "^25.5.0",
     "ts-mock-imports": "^1.2.6"
   },
   "dependencies": {
diff --git a/tools/cdk-build-tools/package.json b/tools/cdk-build-tools/package.json
index c145b5447fc06..1fcd067f41122 100644
--- a/tools/cdk-build-tools/package.json
+++ b/tools/cdk-build-tools/package.json
@@ -53,7 +53,7 @@
     "jsii-pacmak": "^1.4.1",
     "nodeunit": "^0.11.3",
     "nyc": "^15.0.1",
-    "ts-jest": "^25.4.0",
+    "ts-jest": "^25.5.0",
     "tslint": "^5.20.1",
     "typescript": "~3.8.3",
     "yargs": "^15.3.1",
diff --git a/yarn.lock b/yarn.lock
index 475164ec0b137..fc20dd9a0df70 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8226,12 +8226,12 @@ mkdirp-promise@^5.0.1:
   dependencies:
     mkdirp "*"
 
-mkdirp@*, mkdirp@1.x:
+mkdirp@*:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
   integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
 
-mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1:
+mkdirp@0.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
   integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
@@ -10428,7 +10428,7 @@ resolve@1.1.7:
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
   integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
 
-resolve@1.x, resolve@^1.1.5, resolve@^1.10.0, resolve@^1.11.1, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.3.2, resolve@^1.4.0:
+resolve@^1.1.5, resolve@^1.10.0, resolve@^1.11.1, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.3.2, resolve@^1.4.0:
   version "1.16.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.16.1.tgz#49fac5d8bacf1fd53f200fa51247ae736175832c"
   integrity sha512-rmAglCSqWWMrrBv/XM6sW0NuRFiKViw/W4d9EbC4pt+49H8JwHy+mcGmALTEg504AUDcLTvb1T2q3E9AnmY+ig==
@@ -11766,10 +11766,10 @@ trivial-deferred@^1.0.1:
   resolved "https://registry.yarnpkg.com/trivial-deferred/-/trivial-deferred-1.0.1.tgz#376d4d29d951d6368a6f7a0ae85c2f4d5e0658f3"
   integrity sha1-N21NKdlR1jaKb3oK6FwvTV4GWPM=
 
-ts-jest@^25.4.0:
-  version "25.4.0"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-25.4.0.tgz#5ad504299f8541d463a52e93e5e9d76876be0ba4"
-  integrity sha512-+0ZrksdaquxGUBwSdTIcdX7VXdwLIlSRsyjivVA9gcO+Cvr6ByqDhu/mi5+HCcb6cMkiQp5xZ8qRO7/eCqLeyw==
+ts-jest@^25.5.0:
+  version "25.5.0"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-25.5.0.tgz#f56f039b6caa15d9e32d064b0a8902886ab2fe72"
+  integrity sha512-govrjbOk1UEzcJ5cX5k8X8IUtFuP3lp3mrF3ZuKtCdAOQzdeCM7qualhb/U8s8SWFwEDutOqfF5PLkJ+oaYD4w==
   dependencies:
     bs-logger "0.x"
     buffer-from "1.x"
@@ -11778,8 +11778,7 @@ ts-jest@^25.4.0:
     lodash.memoize "4.x"
     make-error "1.x"
     micromatch "4.x"
-    mkdirp "1.x"
-    resolve "1.x"
+    mkdirp "0.x"
     semver "6.x"
     yargs-parser "18.x"