diff --git a/pubspec.yaml b/pubspec.yaml
index 0fc324b..1d2cf9d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,7 +6,7 @@ repository: https://github.com/Stacked-Org/crashlytics.git
 issue_tracker: https://github.com/Stacked-Org/framework/issues
 
 environment:
-  sdk: '>=2.15.0 <3.0.0'
+  sdk: '<4.0.0'
   flutter: '>=1.17.0'
 
 dependencies: