Update pubspec.yaml

cloudwebrtc · web-flow · commit 36aff8c1a75d · 2021-04-01T21:53:55.000+08:00
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -4,6 +4,7 @@ version: 0.6.0
 homepage: https://github.com/cloudwebrtc/flutter-webrtc
 environment:
   sdk: '>=2.12.0 <3.0.0'
+  flutter: ^1.22.0
 
 dependencies:
   flutter:
