diff --git a/package-lock.json b/package-lock.json
index 4df5b3ed..91a8f8bd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16925,9 +16925,9 @@
       }
     },
     "typescript": {
-      "version": "4.1.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
-      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
+      "version": "4.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 79958bde..5f22120b 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "protractor": "~7.0.0",
     "ts-node": "^10.6.0",
     "tsickle": "^0.39.1",
-    "typescript": "4.1.5",
+    "typescript": "4.9.5",
     "zone.js": "^0.11.4"
   }
 }
diff --git a/samples/demo-app/package.json b/samples/demo-app/package.json
index 290ea0e8..8276f099 100644
--- a/samples/demo-app/package.json
+++ b/samples/demo-app/package.json
@@ -28,6 +28,6 @@
     "@angular/language-service": "^11.2.14",
     "@types/node": "^16.11.26",
     "ts-node": "~10.6.0",
-    "typescript": "~4.1.5"
+    "typescript": "~4.9.5"
   }
 }