diff --git a/pubspec.yaml b/pubspec.yaml
index 3163b86..62cc5a1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -19,7 +19,7 @@ dependencies:
   yaml: ^3.1.2
 
 environment:
-  sdk: ">=2.17.0 <4.0.0"
+  sdk: ">=3.0.0 <4.0.0"
 
 dev_dependencies:
   build_runner: ^2.3.3