diff --git a/package-lock.json b/package-lock.json
index 32a2d59..1b80392 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       },
       "devDependencies": {
         "@types/ws": "^8.18.1",
-        "typescript": "^5.8.3"
+        "typescript": "^5.9.3"
       }
     },
     "node_modules/@types/node": {
@@ -36,9 +36,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index a2ee6f6..11b3927 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "license": "ISC",
   "devDependencies": {
     "@types/ws": "^8.18.1",
-    "typescript": "^5.8.3"
+    "typescript": "^5.9.3"
   },
   "dependencies": {
     "ws": "^8.18.3"