diff --git a/package-lock.json b/package-lock.json
index 25ea411..230d26b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
         "timetree-mcp": "dist/index.js"
       },
       "devDependencies": {
-        "@types/node": "^22.10.5",
+        "@types/node": "^25.3.0",
         "tsup": "^8.3.5",
         "typescript": "^5.7.2"
       },
@@ -916,13 +916,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.19.11",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.11.tgz",
-      "integrity": "sha512-BH7YwL6rA93ReqeQS1c4bsPpcfOmJasG+Fkr6Y59q83f9M1WcBRHR2vM+P9eOisYRcN3ujQoiZY8uk5W+1WL8w==",
+      "version": "25.3.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.3.0.tgz",
+      "integrity": "sha512-4K3bqJpXpqfg2XKGK9bpDTc6xO/xoUP/RBWS7AtRMug6zZFaRekiLzjVtAoZMquxoAbzBvy5nxQ7veS5eYzf8A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~7.18.0"
       }
     },
     "node_modules/accepts": {
@@ -2605,9 +2605,9 @@
       "license": "MIT"
     },
     "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": "7.18.2",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
+      "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index ecf6fa5..115fb80 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "zod": "^3.24.1"
   },
   "devDependencies": {
-    "@types/node": "^22.10.5",
+    "@types/node": "^25.3.0",
     "tsup": "^8.3.5",
     "typescript": "^5.7.2"
   },