diff --git a/package.json b/package.json
index fe2d089..5b80b96 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@actions/core": "^1.10.1",
     "@actions/exec": "^1.1.1",
     "ini": "^5.0.0",
-    "zod": "^3.23.8"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@tsconfig/recommended": "^1.0.7",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 153be68..366d3ef 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -18,8 +18,8 @@ importers:
         specifier: ^5.0.0
         version: 5.0.0
       zod:
-        specifier: ^3.23.8
-        version: 3.24.4
+        specifier: ^4.0.0
+        version: 4.1.12
     devDependencies:
       '@tsconfig/recommended':
         specifier: ^1.0.7
@@ -813,8 +813,8 @@ packages:
     resolution: {integrity: sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==}
     engines: {node: '>=12'}
 
-  zod@3.24.4:
-    resolution: {integrity: sha512-OdqJE9UDRPwWsrHjLN2F8bPxvwJBK22EHLWtanu0LSYr5YqzsaaW3RMgmjwr8Rypg5k+meEJdSPXJZXE/yqOMg==}
+  zod@4.1.12:
+    resolution: {integrity: sha512-JInaHOamG8pt5+Ey8kGmdcAcg3OL9reK8ltczgHTAwNhMys/6ThXHityHxVV2p3fkw/c+MAvBHFVYHFZDmjMCQ==}
 
 snapshots:
 
@@ -1483,4 +1483,4 @@ snapshots:
       string-width: 5.1.2
       strip-ansi: 7.1.0
 
-  zod@3.24.4: {}
+  zod@4.1.12: {}