diff --git a/schemas/2022-03-01/Microsoft.App.json b/schemas/2022-03-01/Microsoft.App.json
index 69d4a0a6f6..ac9c94327a 100644
--- a/schemas/2022-03-01/Microsoft.App.json
+++ b/schemas/2022-03-01/Microsoft.App.json
@@ -2403,6 +2403,17 @@
             }
           ],
           "description": "Configuration properties for apps environment to join a Virtual Network"
+        },
+        "zoneRedundant": {
+          "oneOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Whether or not this Managed Environment is zone-redundant."
         }
       },
       "description": "Managed environment resource specific properties"