support latest version of build_web_compilers
diff --git a/pubspec.yaml b/pubspec.yaml
index 3570b41..b319c1a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -18,7 +18,7 @@
   test_api: ^0.2.1
 
 dev_dependencies:
-  build_runner: ^1.0.0
+  build_runner: '>=1.0.0 <3.0.0'
   build_test: ^0.10.0
   build_web_compilers: ^1.0.0
   pedantic: ^1.3.0