diff --git a/package-lock.json b/package-lock.json
index a403315..7895848 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
       "devDependencies": {
         "@types/node": "^20.14.0",
         "@vercel/ncc": "^0.38.1",
-        "typescript": "^5.4.5"
+        "typescript": "^5.5.3"
       }
     },
     "node_modules/@actions/cache": {
@@ -524,9 +524,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.4.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
-      "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.3.tgz",
+      "integrity": "sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -1019,9 +1019,9 @@
       "integrity": "sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg=="
     },
     "typescript": {
-      "version": "5.4.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
-      "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.3.tgz",
+      "integrity": "sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==",
       "dev": true
     },
     "undici-types": {
diff --git a/package.json b/package.json
index d74ded2..79a91ea 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "@types/node": "^20.14.0",
     "@vercel/ncc": "^0.38.1",
-    "typescript": "^5.4.5"
+    "typescript": "^5.5.3"
   },
   "bugs": {
     "url": "https://github.com/hendrikmuhs/ccache-action/issues"