diff --git a/DEPS b/DEPS
index c96e0af5611..c150f492301 100644
--- a/DEPS
+++ b/DEPS
@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '06183779d7aa21f7f3b94534519112df0bca2fd7',
+  'dart_revision': '66076553820056eca190b9ffd84d2c7e29127d19',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -170,7 +170,7 @@ deps = {
    Var('dart_git') + '/args.git' + '@' + Var('dart_args_tag'),
 
   'src/third_party/dart/third_party/pkg/async':
-   Var('dart_git') + '/async.git@5a4373458bfc902e4a4064427c619c2b41783f0d',
+   Var('dart_git') + '/async.git@6b90f4557f330e1ead021f501ee7f1d8b0e77815',
 
   'src/third_party/dart/third_party/pkg/bazel_worker':
    Var('dart_git') + '/bazel_worker.git@26680d5e249b249c7216ab2fed0ac8ed4ee285c5',