diff --git a/package.json b/package.json
index 61b2b411..27bf1468 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "test:attw": "attw --pack"
   },
   "peerDependencies": {
-    "zod": ">=3"
+    "zod": ">=4.3.6"
   },
   "peerDependenciesMeta": {
     "zod": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 10eb734b..68901334 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -199,7 +199,7 @@ importers:
         specifier: 'catalog:'
         version: 1.6.3
       zod:
-        specifier: '>=3'
+        specifier: '>=4.3.6'
         version: 4.3.6
     devDependencies:
       '@antfu/eslint-config':