diff --git a/pubspec.yaml b/pubspec.yaml
index c3ed2002..a2b352cf 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ version: 0.26.0
 homepage: https://github.com/namib-project/dart_wot
 
 environment:
-  sdk: '>=2.17.0 <4.0.0'
+  sdk: '>=3.0.0 <4.0.0'
 
 dev_dependencies:
   build_runner: ^2.3.0