diff --git a/package-lock.json b/package-lock.json
index 3e44c0a..b4041ec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.17.1",
-        "zod": "^3.25.76",
+        "zod": "^4.5.4",
         "zod-to-json-schema": "^3.24.6"
       },
       "devDependencies": {
@@ -8214,9 +8214,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.5.4",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.5.4.tgz",
+      "integrity": "sha512-sC95tT5iHHH9gtpj6A81kh+NEaRAUFN+qlUPDUbRfOMvNf5QCBqsb3WgvnpVtK5Y+4UfA6KqufotuTvMGiTlsA==",
       "license": "MIT",
       "funding": {
         "url": "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/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 31fbba3..fb41311 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.17.1",
-    "zod": "^3.25.76",
+    "zod": "^4.5.4",
     "zod-to-json-schema": "^3.24.6"
   },
   "devDependencies": {