diff --git a/pubspec.yaml b/pubspec.yaml
index 1e2e7eb..9673b4f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ publish_to: "none"
 version: 1.0.0+27
 
 environment:
-  sdk: ">=2.16.1 <3.0.0"
+  sdk: ">=3.0.0 <4.0.0"
 dependencies:
   flutter:
     sdk: flutter