diff --git a/package-lock.json b/package-lock.json
index d8ad6593..b9ebefee 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,7 +39,7 @@
         "prettier": "2.7.1",
         "ts-jest": "29.0.3",
         "tslint": "6.1.3",
-        "typescript": "4.8.4",
+        "typescript": "4.9.3",
         "typescript-json-schema": "0.54.0",
         "worldstar": "1.2.3"
       },
@@ -10119,9 +10119,9 @@
       }
     },
     "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",
@@ -18486,9 +18486,9 @@
       "dev": true
     },
     "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
     },
     "typescript-json-schema": {
diff --git a/package.json b/package.json
index 530cc024..7275cef6 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "prettier": "2.7.1",
     "ts-jest": "29.0.3",
     "tslint": "6.1.3",
-    "typescript": "4.8.4",
+    "typescript": "4.9.3",
     "typescript-json-schema": "0.54.0",
     "worldstar": "1.2.3"
   },