diff --git a/package-lock.json b/package-lock.json
index 27c71e9..9340829 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "prom-client": "^15.1.3",
         "which": "^6.0.0",
         "yaml": "^2.3.4",
-        "zod": "^3.25.76"
+        "zod": "^4.3.5"
       },
       "bin": {
         "cerber": "bin/cerber",
@@ -6688,9 +6688,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.5.tgz",
+      "integrity": "sha512-k7Nwx6vuWx1IJ9Bjuf4Zt1PEllcwe7cls3VNzm4CQ1/hgtFUK2bRNG3rvnpPUhFjmqJKAKtjV576KnUkHocg/g==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 67de126..8206b57 100644
--- a/package.json
+++ b/package.json
@@ -112,7 +112,7 @@
     "prom-client": "^15.1.3",
     "which": "^6.0.0",
     "yaml": "^2.3.4",
-    "zod": "^3.25.76"
+    "zod": "^4.3.5"
   },
   "devDependencies": {
     "@types/jest": "^29.5.0",