diff --git a/ts_server/package-lock.json b/ts_server/package-lock.json
index d756ad8..4e6de5c 100644
--- a/ts_server/package-lock.json
+++ b/ts_server/package-lock.json
@@ -2022,9 +2022,9 @@
       }
     },
     "typescript": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.2.tgz",
-      "integrity": "sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ=="
+      "version": "4.9.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.4.tgz",
+      "integrity": "sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg=="
     },
     "undefsafe": {
       "version": "2.0.3",
diff --git a/ts_server/package.json b/ts_server/package.json
index 756c849..b54629c 100644
--- a/ts_server/package.json
+++ b/ts_server/package.json
@@ -19,7 +19,7 @@
     "cors": "^2.8.5",
     "express": "^4.17.1",
     "socket.io": "^2.3.0",
-    "typescript": "^4.0.2"
+    "typescript": "^4.9.4"
   },
   "devDependencies": {
     "concurrently": "^5.3.0",