diff --git a/DEPS b/DEPS
index 519526f281cce6563d4e375d0d392f3bf6233a71..92f84bff8ff04c03f41871241fcaab3ec3dd2919 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': 'fb14babf59584ee3aa9b524341455f2a3f3fca91',
+  'dart_revision': '2e8d9128486b57b437046045d898a7ff0e6f9289',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
diff --git a/ci/licenses_golden/licenses_third_party b/ci/licenses_golden/licenses_third_party
index 55c6c42ae8aca64f126907388e730a0f08926719..ef527fda9d938ca63c8e95d09fd188a3cf49ee6c 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: b4990680edf3c9cdbf728c324c5f11af
+Signature: 8430918929b4abe4fd737ce8b1e47b92
 
 UNUSED LICENSES:
 
@@ -7440,6 +7440,7 @@ FILE: ../../../third_party/dart/runtime/llvm_codegen/bit/main.cc
 FILE: ../../../third_party/dart/runtime/llvm_codegen/bit/test.cc
 FILE: ../../../third_party/dart/runtime/llvm_codegen/codegen/main.cc
 FILE: ../../../third_party/dart/runtime/observatory/lib/src/elements/tree_map.dart
+FILE: ../../../third_party/dart/runtime/observatory/lib/src/repositories/timeline_base.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/dartfuzz_api_table.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/dartfuzz_ffiapi.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/gen_api_table.dart