diff --git a/docs/package.json b/docs/package.json
index 792cc1c0..270d2432 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -15,6 +15,6 @@
     "astro": "^5.16.0",
     "sharp": "^0.34.5",
     "typescript": "^5.9.3",
-    "zod": "^3.25.76"
+    "zod": "^4.2.1"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 66d1e7e9..af10f373 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -199,8 +199,8 @@ importers:
         specifier: ^5.9.3
         version: 5.9.3
       zod:
-        specifier: ^3.25.76
-        version: 3.25.76
+        specifier: ^4.2.1
+        version: 4.2.1
 
 packages: