diff --git a/package-lock.json b/package-lock.json
index 94e2dc0..486758d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "npm-run-all": "^4.1.5",
         "semantic-release": "^23.1.1",
         "ts-jest": "^28.0.7",
-        "typescript": "^4.7.4"
+        "typescript": "^5.9.3"
       }
     },
     "node_modules/@actions/core": {
@@ -10495,16 +10495,17 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.9.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
-      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
+      "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": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/uglify-js": {
diff --git a/package.json b/package.json
index cc9398b..7cac554 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "npm-run-all": "^4.1.5",
     "semantic-release": "^23.1.1",
     "ts-jest": "^28.0.7",
-    "typescript": "^4.7.4"
+    "typescript": "^5.9.3"
   },
   "dependencies": {
     "@actions/core": "^1.10.0",