diff --git a/pubspec.yaml b/pubspec.yaml
index 323f039..d082af0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: collection
-version: 1.14.10
+version: 1.14.11-dev
 author: Dart Team <misc@dartlang.org>
 description: Collections and utilities functions and classes related to collections.
 homepage: https://www.github.com/dart-lang/collection
@@ -11,5 +11,5 @@ environment:
 dev_dependencies:
   build_runner: ^0.8.0
   build_test: ^0.10.0
-  build_web_compilers: ^0.3.1
+  build_web_compilers: ^0.4.0
   test: ^0.12.35