diff --git a/schemas/2022-03-01/Microsoft.App.json b/schemas/2022-03-01/Microsoft.App.json
index 69d4a0a6f6..23c0ba8cef 100644
--- a/schemas/2022-03-01/Microsoft.App.json
+++ b/schemas/2022-03-01/Microsoft.App.json
@@ -2766,6 +2766,10 @@
     "RegistryCredentials": {
       "type": "object",
       "properties": {
+        "identity": {
+          "type": "string",
+          "description": "A Managed Identity to use to authenticate with Azure Container Registry. For user-assigned identities, use the full user-assigned identity Resource ID. For system-assigned identities, use 'system'"
+        },
         "passwordSecretRef": {
           "type": "string",
           "description": "The name of the Secret that contains the registry login password"