diff --git a/package-lock.json b/package-lock.json
index f55ba006..f3ed6efc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
         "openai": "^4.0.0",
         "pino": "^10.1.0",
         "prom-client": "^15.1.3",
-        "zod": "^3.25.76"
+        "zod": "^4.3.6"
       },
       "devDependencies": {
         "@eslint/js": "^9.12.0",
@@ -4800,9 +4800,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
+      "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 0101b2eb..53c14486 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "openai": "^4.0.0",
     "pino": "^10.1.0",
     "prom-client": "^15.1.3",
-    "zod": "^3.25.76"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@eslint/js": "^9.12.0",