diff --git a/package-lock.json b/package-lock.json
index f000a2aa..e155b6cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "source-map-loader": "2.0.2",
         "terser-webpack-plugin": "5.3.6",
         "ts-loader": "9.4.1",
-        "typescript": "4.8.4",
+        "typescript": "4.9.3",
         "webpack": "5.75.0",
         "webpack-cli": "4.10.0",
         "webpack-dev-server": "4.11.1",
@@ -4265,9 +4265,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.8.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.8.4.tgz",
-      "integrity": "sha512-QCh+85mCy+h0IGff8r5XWzOVSbBO+KfeYrMQh7NJ58QujwcE22u+NUSmUxqF+un70P9GXKxa2HCNiTTMJknyjQ==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.3.tgz",
+      "integrity": "sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -8125,9 +8125,9 @@
       }
     },
     "typescript": {
-      "version": "4.8.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.8.4.tgz",
-      "integrity": "sha512-QCh+85mCy+h0IGff8r5XWzOVSbBO+KfeYrMQh7NJ58QujwcE22u+NUSmUxqF+un70P9GXKxa2HCNiTTMJknyjQ==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.3.tgz",
+      "integrity": "sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==",
       "dev": true
     },
     "unbzip2-stream": {
diff --git a/package.json b/package.json
index 24fcdfaa..21aabde1 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@excaliburjs/testing": "0.25.1",
     "source-map-loader": "2.0.2",
     "ts-loader": "9.4.1",
-    "typescript": "4.8.4",
+    "typescript": "4.9.3",
     "terser-webpack-plugin": "5.3.6",
     "webpack": "5.75.0",
     "webpack-cli": "4.10.0",