dev dep: latest build_web_compilers (#102)

diff --git a/pubspec.yaml b/pubspec.yaml
index 9734515..23587a7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -12,5 +12,5 @@
 dev_dependencies:
   build_runner: ^1.0.0
   build_test: ^0.10.0
-  build_web_compilers: ^0.4.0
+  build_web_compilers: ^1.0.0
   test: ^1.0.0