diff --git a/package-lock.json b/package-lock.json
index 82c9af0..e76d670 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "gfcli": "cli.js"
       },
       "devDependencies": {
-        "@types/node": "^22.19.15",
+        "@types/node": "^26.5.1",
         "@vitest/coverage-v8": "^4.0.16",
         "proxyquire": "^2.1.3",
         "typescript": "^5.9.3",
@@ -476,13 +476,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.20.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.20.1.tgz",
-      "integrity": "sha512-EANqOCF9QFyra+4pfxUcX9STKJpCLjMbObVzljIJomAWSnuSIEAvyzEU53GaajbXJEgdh0iEcPL+DGvpUd4k1Q==",
+      "version": "26.5.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.5.1.tgz",
+      "integrity": "sha512-CzNm2FezW4VR/LjG6yUdiEgLE/rAQ9Slj5gCu/C2VrdcW7I0ahNZ8DRbHT7zOZ6r3ONgd/bsQIeSaoDGrd1C6g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@vitest/coverage-v8": {
@@ -1794,9 +1794,9 @@
       }
     },
     "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 2868610..9d0e683 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "node-powershell": "^5.0.1"
   },
   "devDependencies": {
-    "@types/node": "^22.19.15",
+    "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "^4.0.16",
     "proxyquire": "^2.1.3",
     "typescript": "^5.9.3",