diff --git a/package.json b/package.json
index bbdcc55..a75b008 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "@ts-rest/core": "3.53.0-rc.1",
     "common-tags": "1.8.2",
     "temporal-polyfill": "0.3.0",
-    "zod": "4.0.10"
+    "zod": "4.1.9"
   },
   "devDependencies": {
     "@eslint/js": "9.32.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c014984..9106746 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -21,8 +21,8 @@ importers:
         specifier: 0.3.0
         version: 0.3.0
       zod:
-        specifier: 4.0.10
-        version: 4.0.10
+        specifier: 4.1.9
+        version: 4.1.9
     devDependencies:
       '@eslint/js':
         specifier: 9.32.0
@@ -1433,8 +1433,8 @@ packages:
     resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
     engines: {node: '>=10'}
 
-  zod@4.0.10:
-    resolution: {integrity: sha512-3vB+UU3/VmLL2lvwcY/4RV2i9z/YU0DTV/tDuYjrwmx5WeJ7hwy+rGEEx8glHp6Yxw7ibRbKSaIFBgReRPe5KA==}
+  zod@4.1.9:
+    resolution: {integrity: sha512-HI32jTq0AUAC125z30E8bQNz0RQ+9Uc+4J7V97gLYjZVKRjeydPgGt6dvQzFrav7MYOUGFqqOGiHpA/fdbd0cQ==}
 
 snapshots:
 
@@ -2734,4 +2734,4 @@ snapshots:
 
   yocto-queue@0.1.0: {}
 
-  zod@4.0.10: {}
+  zod@4.1.9: {}