pubspec edit

fixtures/_webdevSoundSmoke/pubspec.yaml

diff --git a/fixtures/_webdevSoundSmoke/pubspec.yaml b/fixtures/_webdevSoundSmoke/pubspec.yaml
index cf0738e..31825ea 100644
--- a/fixtures/_webdevSoundSmoke/pubspec.yaml
+++ b/fixtures/_webdevSoundSmoke/pubspec.yaml
@@ -5,6 +5,6 @@
   sdk: '>=2.17.0 <3.0.0'
 
 dev_dependencies:
-  build_runner: '>=1.6.2 <3.0.0'
-  build_web_compilers: '>=2.12.0 <4.0.0'
+  build_runner: ^2.1.11
+  build_web_compilers: ^3.2.3