diff --git a/package-lock.json b/package-lock.json
index 5f229a7..d3714f6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
       "devDependencies": {
         "@types/node": "^17.0.33",
         "@vercel/ncc": "^0.38.4",
-        "typescript": "^4.3.5"
+        "typescript": "^5.9.3"
       }
     },
     "node_modules/@actions/core": {
@@ -113,16 +113,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.3.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
-      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/undici": {
@@ -223,9 +223,9 @@
       "integrity": "sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg=="
     },
     "typescript": {
-      "version": "4.3.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
-      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true
     },
     "undici": {
diff --git a/package.json b/package.json
index 0807f9d..f58df3c 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
   "devDependencies": {
     "@types/node": "^17.0.33",
     "@vercel/ncc": "^0.38.4",
-    "typescript": "^4.3.5"
+    "typescript": "^5.9.3"
   }
 }