diff --git a/resources/cognito-user-pool.yml b/resources/cognito-user-pool.yml
index d68c3f0..29ba78d 100644
--- a/resources/cognito-user-pool.yml
+++ b/resources/cognito-user-pool.yml
@@ -5,7 +5,7 @@ Resources:
       # Generate a name based on the stage
       UserPoolName: ${self:custom.stage}-user-pool
       # Set email as an alias
-      AliasAttributes:
+      UsernameAttributes:
         - email
       AutoVerifiedAttributes:
         - email