diff --git a/package-lock.json b/package-lock.json
index 6c845c4..b84b906 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
                 "@modelcontextprotocol/sdk": "^1.21.2",
                 "esbuild": "^0.25.12",
                 "eslint": "^10.10.0",
-                "zod": "^3.24.2"
+                "zod": "^4.6.5"
             },
             "engines": {
                 "node": ">=18.0.0"
@@ -2630,9 +2630,9 @@
             }
         },
         "node_modules/zod": {
-            "version": "3.25.76",
-            "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-            "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+            "version": "4.6.5",
+            "resolved": "https://registry.npmjs.org/zod/-/zod-4.6.5.tgz",
+            "integrity": "sha512-v5l/aFXZQeai4awLbOpSoHecE9UiMrnfx75tEXLjNonXVARxQ5mOeipTjROUchszUNCqnE+hqAMujRsRHsut2Q==",
             "dev": true,
             "license": "MIT",
             "funding": {
diff --git a/package.json b/package.json
index 9d86664..cc921c0 100644
--- a/package.json
+++ b/package.json
@@ -78,6 +78,6 @@
         "@modelcontextprotocol/sdk": "^1.21.2",
         "esbuild": "^0.25.12",
         "eslint": "^10.10.0",
-        "zod": "^3.24.2"
+        "zod": "^4.6.5"
     }
 }