diff --git a/express-zod-api/tests/__snapshots__/date-in-schema.spec.ts.snap b/express-zod-api/tests/__snapshots__/date-in-schema.spec.ts.snap
index b4bc3da58d..0164ecc2f5 100644
--- a/express-zod-api/tests/__snapshots__/date-in-schema.spec.ts.snap
+++ b/express-zod-api/tests/__snapshots__/date-in-schema.spec.ts.snap
@@ -3,12 +3,41 @@
 exports[`ez.dateIn() > parsing > should handle invalid date 1`] = `
 [
   {
-    "code": "invalid_format",
-    "format": "date",
-    "message": "Invalid ISO date",
-    "origin": "string",
+    "code": "invalid_union",
+    "errors": [
+      [
+        {
+          "code": "invalid_format",
+          "format": "date",
+          "message": "Invalid ISO date",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$/",
+        },
+      ],
+      [
+        {
+          "code": "invalid_format",
+          "format": "datetime",
+          "message": "Invalid ISO datetime",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$/",
+        },
+      ],
+      [
+        {
+          "code": "invalid_format",
+          "format": "datetime",
+          "message": "Invalid ISO datetime",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$/",
+        },
+      ],
+    ],
+    "message": "Invalid input",
     "path": [],
-    "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$/",
   },
 ]
 `;
@@ -16,12 +45,41 @@ exports[`ez.dateIn() > parsing > should handle invalid date 1`] = `
 exports[`ez.dateIn() > parsing > should handle invalid format 1`] = `
 [
   {
-    "code": "invalid_format",
-    "format": "date",
-    "message": "Invalid ISO date",
-    "origin": "string",
+    "code": "invalid_union",
+    "errors": [
+      [
+        {
+          "code": "invalid_format",
+          "format": "date",
+          "message": "Invalid ISO date",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$/",
+        },
+      ],
+      [
+        {
+          "code": "invalid_format",
+          "format": "datetime",
+          "message": "Invalid ISO datetime",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$/",
+        },
+      ],
+      [
+        {
+          "code": "invalid_format",
+          "format": "datetime",
+          "message": "Invalid ISO datetime",
+          "origin": "string",
+          "path": [],
+          "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|))$/",
+        },
+      ],
+    ],
+    "message": "Invalid input",
     "path": [],
-    "pattern": "/^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$/",
   },
 ]
 `;
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0467995f22..990ae50180 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -44,7 +44,7 @@ catalogs:
       version: 6.21.3
     zod:
       specifier: ^4.0.0
-      version: 4.0.8
+      version: 4.0.10
 
 overrides:
   '@scarf/scarf': npm:empty-npm-package@1.0.0
@@ -104,7 +104,7 @@ importers:
         version: link:../express-zod-api
       zod:
         specifier: catalog:dev
-        version: 4.0.8
+        version: 4.0.10
 
   compat-test:
     devDependencies:
@@ -140,7 +140,7 @@ importers:
         version: link:../express-zod-api
       zod:
         specifier: catalog:dev
-        version: 4.0.8
+        version: 4.0.10
 
   example:
     devDependencies:
@@ -167,7 +167,7 @@ importers:
         version: 6.21.3
       zod:
         specifier: catalog:dev
-        version: 4.0.8
+        version: 4.0.10
 
   express-zod-api:
     dependencies:
@@ -249,7 +249,7 @@ importers:
         version: 6.21.3
       zod:
         specifier: catalog:dev
-        version: 4.0.8
+        version: 4.0.10
 
   issue952-test:
     dependencies:
@@ -267,7 +267,7 @@ importers:
         version: 5.8.3
       zod:
         specifier: catalog:dev
-        version: 4.0.8
+        version: 4.0.10
 
   migration:
     devDependencies:
@@ -2379,8 +2379,8 @@ packages:
   zod@3.25.35:
     resolution: {integrity: sha512-Fe0Tz/mSbIraMd1/RR1jbtPMsrzX/SNwCmEpRqB0xB2YBnoRfQqyu4aIqWKWrx9C2XjF4SY47IVIt30+RVGSsw==}
 
-  zod@4.0.8:
-    resolution: {integrity: sha512-+MSh9cZU9r3QKlHqrgHMTSr3QwMGv4PLfR0M4N/sYWV5/x67HgXEhIGObdBkpnX8G78pTgWnIrBL2lZcNJOtfg==}
+  zod@4.0.10:
+    resolution: {integrity: sha512-3vB+UU3/VmLL2lvwcY/4RV2i9z/YU0DTV/tDuYjrwmx5WeJ7hwy+rGEEx8glHp6Yxw7ibRbKSaIFBgReRPe5KA==}
 
 snapshots:
 
@@ -4506,4 +4506,4 @@ snapshots:
 
   zod@3.25.35: {}
 
-  zod@4.0.8: {}
+  zod@4.0.10: {}