diff --git a/package-lock.json b/package-lock.json
index 6d0776a..c756012 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
       "devDependencies": {
         "@types/express": "^5.0.3",
         "shx": "^0.4.0",
-        "typescript": "~5.7.3"
+        "typescript": "~5.9.3"
       },
       "engines": {
         "node": ">=18.0.0"
@@ -1728,9 +1728,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.7.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.3.tgz",
-      "integrity": "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw==",
+      "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 f7d18fa..c6fcada 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,6 @@
   "devDependencies": {
     "@types/express": "^5.0.3",
     "shx": "^0.4.0",
-    "typescript": "~5.7.3"
+    "typescript": "~5.9.3"
   }
 }