diff --git a/package-lock.json b/package-lock.json
index 75f54da..922637e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "graphflow-mcp": "dist/mcp-server.js"
       },
       "devDependencies": {
-        "@types/node": "^22.10.2",
+        "@types/node": "^26.6.5",
         "tsx": "^4.19.2",
         "typescript": "^5.7.2"
       },
@@ -575,13 +575,13 @@
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     "node_modules/@types/node": {
-      "version": "22.20.5",
-      "resolved": "https://registry.npmmirror.com/@types/node/-/node-22.20.5.tgz",
-      "integrity": "sha512-U2+DNr+wSjpsTS/wZGYHq7GcwfuSmKiKvoPvK22zwTlRhU91yOniN4qRR5KhIjvif7ysw/dz/hKmfDH0Ris4aA==",
+      "version": "26.6.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.5.tgz",
+      "integrity": "sha512-uMzsv9stDdofIZBx4UGh4Z9ZgXnGC9seRDscilBcTHAeOFk67MZg/k9bWVfO+bk4qZmG+l52hRnLwUiH2LnJTg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/accepts": {
@@ -1177,7 +1177,6 @@
       "resolved": "https://registry.npmmirror.com/hono/-/hono-4.13.13.tgz",
       "integrity": "sha512-CQ46U0ZkAGmbT/4UxdzzGJpacP2IeKgY4a5/tOI9AABbpOMfK739wfDXmv1usCk+3RkKj1hQy4/fjhiwa2xlrA==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=16.9.0"
       }
@@ -1728,7 +1727,6 @@
       "integrity": "sha512-usbHZP9/oxNsUY65MQUsduGRqDHQOou1cagUSwjhoSYAmSahjQDAVsh9s+SlZkn8X8+O1FULRGwHu7AFP3kjzg==",
       "hasInstallScript": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "node-addon-api": "^8.3.0",
         "node-gyp-build": "^4.8.4"
@@ -1920,9 +1918,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmmirror.com/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"
     },
@@ -1970,7 +1968,6 @@
       "resolved": "https://registry.npmmirror.com/zod/-/zod-4.6.7.tgz",
       "integrity": "sha512-g8W2D2kU6a8untc053fX1uVBKzM7yqAxW/3zwk83+6RyF2+SKOuV+c0wBDhUwzV1PaGapmZH+rmcUzPf+3CGwg==",
       "license": "MIT",
-      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
diff --git a/package.json b/package.json
index 3ff0451..58454b9 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,7 @@
     "tree-sitter": "0.22.4"
   },
   "devDependencies": {
-    "@types/node": "^22.10.2",
+    "@types/node": "^26.6.5",
     "tsx": "^4.19.2",
     "typescript": "^5.7.2"
   }