diff --git a/package.json b/package.json
index f0aa649..17ee332 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.39.0",
-    "zod": "^3.23.0"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@types/node": "^22.0.0",