diff --git a/package-lock.json b/package-lock.json
index ddde971..70fa5cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
         "@actions/core": "^1.10.0"
       },
       "devDependencies": {
-        "@types/node": "^20.0.0",
+        "@types/node": "^26.6.2",
         "@vercel/ncc": "^0.38.4",
         "typescript": "^5.9.3"
       }
@@ -61,13 +61,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "20.19.35",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.35.tgz",
-      "integrity": "sha512-Uarfe6J91b9HAUXxjvSOdiO2UPOKLm07Q1oh0JHxoZ1y8HoqxDAu3gVrsrOHeiio0kSsoVBt4wFrKOm0dKxVPQ==",
+      "version": "26.6.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.2.tgz",
+      "integrity": "sha512-X1P21scMv4zGKLYqjdGjaKa7COa0RKVYYZZN/NfvLQ1JegxFhdhpZG/Lyn8AXx6CDUavKAd11v6BvfpkDByK8g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@vercel/ncc": {
@@ -116,9 +116,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
       "dev": true,
       "license": "MIT"
     }
diff --git a/package.json b/package.json
index 4e61a64..59b5cb5 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "@actions/core": "^1.10.0"
   },
   "devDependencies": {
-    "@types/node": "^20.0.0",
+    "@types/node": "^26.6.2",
     "@vercel/ncc": "^0.38.4",
     "typescript": "^5.9.3"
   }