diff --git a/pubspec.yaml b/pubspec.yaml
index f2b352b..38b0c2c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -21,8 +21,6 @@ version: 1.0.24+24
 
 environment:
   sdk: ">=3.0.5 <4.0.0"
-  #  sdk: '>=3.1.0-213.0.dev <4.0.0'
-#  sdk: ">=2.18.0-257.0.dev <3.0.0"
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions