diff --git a/packages_generated/iam/src/v1alpha1/validation-rules.gen.ts b/packages_generated/iam/src/v1alpha1/validation-rules.gen.ts
index acc707222..151913785 100644
--- a/packages_generated/iam/src/v1alpha1/validation-rules.gen.ts
+++ b/packages_generated/iam/src/v1alpha1/validation-rules.gen.ts
@@ -69,7 +69,7 @@ export const CreateUserRequestMember = {
   username: {
     maxLength: 64,
     minLength: 2,
-    pattern: /^[a-zA-Z0-9._-]+$/,
+    pattern: /^[a-zA-Z0-9@._-]+$/,
   },
 }
 
@@ -310,7 +310,7 @@ export const UpdateUserUsernameRequest = {
   username: {
     maxLength: 64,
     minLength: 2,
-    pattern: /^[a-zA-Z0-9._-]+$/,
+    pattern: /^[a-zA-Z0-9@._-]+$/,
   },
 }