diff --git a/aio/aio-builds-setup/dockerbuild/scripts-js/package.json b/aio/aio-builds-setup/dockerbuild/scripts-js/package.json
index 5bbd0b0b4db02..2509ff6e57c4d 100644
--- a/aio/aio-builds-setup/dockerbuild/scripts-js/package.json
+++ b/aio/aio-builds-setup/dockerbuild/scripts-js/package.json
@@ -49,6 +49,6 @@
     "supertest": "^4.0.2",
     "tslint": "^6.1.3",
     "tslint-jasmine-noSkipOrFocus": "^1.0.9",
-    "typescript": "^4.3.2"
+    "typescript": "~4.3.4"
   }
 }
diff --git a/aio/aio-builds-setup/dockerbuild/scripts-js/yarn.lock b/aio/aio-builds-setup/dockerbuild/scripts-js/yarn.lock
index c5538158aa07e..e54c0400bf404 100644
--- a/aio/aio-builds-setup/dockerbuild/scripts-js/yarn.lock
+++ b/aio/aio-builds-setup/dockerbuild/scripts-js/yarn.lock
@@ -2563,10 +2563,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.2.tgz#399ab18aac45802d6f2498de5054fcbbe716a805"
-  integrity sha512-zZ4hShnmnoVnAHpVHWpTcxdv7dWP60S2FsydQLV8V5PbS3FifjWFFRiHSWpDJahly88PRyV5teTSLoq4eG7mKw==
+typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 undefsafe@^2.0.2:
   version "2.0.2"
diff --git a/aio/package.json b/aio/package.json
index 3d3bcb2f9738e..32e5e75d0c0b5 100644
--- a/aio/package.json
+++ b/aio/package.json
@@ -167,7 +167,7 @@
     "tree-kill": "^1.1.0",
     "ts-node": "^10.0.0",
     "tslint": "~6.1.3",
-    "typescript": "~4.3.2",
+    "typescript": "~4.3.4",
     "uglify-js": "^3.13.3",
     "unist-util-filter": "^2.0.3",
     "unist-util-source": "^3.0.0",
diff --git a/aio/yarn.lock b/aio/yarn.lock
index 9f9b7db745161..da776929a2e2b 100644
--- a/aio/yarn.lock
+++ b/aio/yarn.lock
@@ -12284,10 +12284,10 @@ typescript@~3.2.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.4.tgz#c585cb952912263d915b462726ce244ba510ef3d"
   integrity sha512-0RNDbSdEokBeEAkgNbxJ+BLwSManFy9TeXz8uW+48j/xhEXv1ePME60olyzw2XzUqUBNAYFeJadIqAgNqIACwg==
 
-typescript@~4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.2.tgz#399ab18aac45802d6f2498de5054fcbbe716a805"
-  integrity sha512-zZ4hShnmnoVnAHpVHWpTcxdv7dWP60S2FsydQLV8V5PbS3FifjWFFRiHSWpDJahly88PRyV5teTSLoq4eG7mKw==
+typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 ua-parser-js@^0.7.23:
   version "0.7.28"
diff --git a/package.json b/package.json
index fa50f8c71b8c6..92599c30679e1 100644
--- a/package.json
+++ b/package.json
@@ -153,7 +153,7 @@
     "tsickle": "0.38.1",
     "tslib": "^2.2.0",
     "tslint": "6.1.3",
-    "typescript": "~4.3.2",
+    "typescript": "~4.3.4",
     "xhr2": "0.2.1",
     "yaml": "^1.10.0",
     "yargs": "^17.0.0"
diff --git a/packages/zone.js/package.json b/packages/zone.js/package.json
index c0448c08aaa68..13edca69e3cf6 100644
--- a/packages/zone.js/package.json
+++ b/packages/zone.js/package.json
@@ -19,7 +19,7 @@
     "mocha": "^9.0.0",
     "mock-require": "3.0.3",
     "promises-aplus-tests": "^2.1.2",
-    "typescript": "4.3.2"
+    "typescript": "~4.3.4"
   },
   "scripts": {
     "closuretest": "./scripts/closure/closure_compiler.sh",
diff --git a/packages/zone.js/test/typings/package.json b/packages/zone.js/test/typings/package.json
index 2bbdc98686134..bdf3334b3fa5d 100644
--- a/packages/zone.js/test/typings/package.json
+++ b/packages/zone.js/test/typings/package.json
@@ -14,6 +14,6 @@
     "zone.js": "file:../../../../dist/bin/packages/zone.js/npm_package"
   },
   "devDependencies": {
-    "typescript": "~4.3.2"
+    "typescript": "~4.3.4"
   }
 }
diff --git a/packages/zone.js/yarn.lock b/packages/zone.js/yarn.lock
index dd71a6b5edf13..f4df89fd1c35b 100644
--- a/packages/zone.js/yarn.lock
+++ b/packages/zone.js/yarn.lock
@@ -3917,10 +3917,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.2.tgz#399ab18aac45802d6f2498de5054fcbbe716a805"
-  integrity sha512-zZ4hShnmnoVnAHpVHWpTcxdv7dWP60S2FsydQLV8V5PbS3FifjWFFRiHSWpDJahly88PRyV5teTSLoq4eG7mKw==
+typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 unbox-primitive@^1.0.1:
   version "1.0.1"
diff --git a/tools/ts-api-guardian/package.json b/tools/ts-api-guardian/package.json
index d09cb26cc433f..0a4d56e73d8dc 100644
--- a/tools/ts-api-guardian/package.json
+++ b/tools/ts-api-guardian/package.json
@@ -25,7 +25,7 @@
     "@types/node": "^10.9.4",
     "jasmine": "^3.1.0",
     "source-map-support": "^0.5.9",
-    "typescript": "4.3.2"
+    "typescript": "4.3.4"
   },
   "keywords": [
     "typescript"
diff --git a/yarn.lock b/yarn.lock
index 8eace78fb94d7..7fbf51f67a069 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12008,7 +12008,6 @@ sauce-connect-launcher@^1.2.4:
 
 "sauce-connect@https://saucelabs.com/downloads/sc-4.6.2-linux.tar.gz":
   version "0.0.0"
-  uid "7b7f35433af9c3380758e048894d7b9aecf3754e"
   resolved "https://saucelabs.com/downloads/sc-4.6.2-linux.tar.gz#7b7f35433af9c3380758e048894d7b9aecf3754e"
 
 saucelabs@^1.5.0:
@@ -13529,10 +13528,10 @@ typescript@~3.7.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.7.tgz#c931733e2ec10dda56b855b379cc488a72a81199"
   integrity sha512-MmQdgo/XenfZPvVLtKZOq9jQQvzaUAUpcKW8Z43x9B2fOm4S5g//tPtMweZUIP+SoBqrVPEIm+dJeQ9dfO0QdA==
 
-typescript@~4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.2.tgz#399ab18aac45802d6f2498de5054fcbbe716a805"
-  integrity sha512-zZ4hShnmnoVnAHpVHWpTcxdv7dWP60S2FsydQLV8V5PbS3FifjWFFRiHSWpDJahly88PRyV5teTSLoq4eG7mKw==
+typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 uglify-js@^3.1.4:
   version "3.13.9"