diff --git a/aws/cloudformation.yaml b/aws/cloudformation.yaml
index 685b97e..db9fe0e 100644
--- a/aws/cloudformation.yaml
+++ b/aws/cloudformation.yaml
@@ -6,9 +6,6 @@ Parameters:
     Type: String
     Description: Environment name
     Default: dev
-    AllowedValues:
-      - dev
-      - prod
   AWSRegion:
     Type: String
     Description: AWS Region