diff --git a/DEPS b/DEPS
index 535ce4f1e64..def6fb9efd7 100644
--- a/DEPS
+++ b/DEPS
@@ -62,7 +62,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'a46161eec56df434bc15e38778584a40b5cf34c8',
+  'dart_revision': '12e49f395fd9185beebb3e9ff62b72910584d91d',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -517,7 +517,7 @@ deps = {
    Var('dart_git') + '/web.git' + '@' + Var('dart_web_rev'),
 
   'src/flutter/third_party/dart/third_party/pkg/web_socket_channel':
-   Var('dart_git') + '/web_socket_channel.git@b612fc2caa9f4c3c8947b4ffbb274bce33c54a04',
+   Var('dart_git') + '/web_socket_channel.git@ced3a37193f89d5ee95792f342eeb15d3d55d8c1',
 
   'src/flutter/third_party/dart/third_party/pkg/webdev':
    Var('dart_git') + '/webdev.git' + '@' + Var('dart_webdev_rev'),
diff --git a/engine/src/flutter/ci/licenses_golden/licenses_dart b/engine/src/flutter/ci/licenses_golden/licenses_dart
index 4e111a3d068..14a229bddcf 100644
--- a/engine/src/flutter/ci/licenses_golden/licenses_dart
+++ b/engine/src/flutter/ci/licenses_golden/licenses_dart
@@ -1,4 +1,4 @@
-Signature: b851b903a801519f7c588527b695dd9b
+Signature: fce5c5d9eeddfb78cd4904113e664704
 
 ====================================================================================================
 LIBRARY: dart
@@ -4737,7 +4737,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/a46161eec56df434bc15e38778584a40b5cf34c8
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/12e49f395fd9185beebb3e9ff62b72910584d91d
 /third_party/fallback_root_certificates/
 
 ====================================================================================================
diff --git a/engine/src/flutter/sky/packages/sky_engine/LICENSE b/engine/src/flutter/sky/packages/sky_engine/LICENSE
index 3548ab1cc91..d3cf849838d 100644
--- a/engine/src/flutter/sky/packages/sky_engine/LICENSE
+++ b/engine/src/flutter/sky/packages/sky_engine/LICENSE
@@ -32293,7 +32293,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/a46161eec56df434bc15e38778584a40b5cf34c8
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/12e49f395fd9185beebb3e9ff62b72910584d91d
 /third_party/fallback_root_certificates/
 
 --------------------------------------------------------------------------------