diff --git a/DEPS b/DEPS
index 99016225f3cfa..3835a64a798c9 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': 'ce76503f5b461590926ba619351518d593b81153',
+  'dart_revision': 'dcd5a8f005a27361f351ef12b2ad49e700d36169',
 
   # 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 127b1daddfa8e..980b804ed6854 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: e4f965835a37a079ac9033d7fe951bb4
+Signature: 32a07d90ab604d3cd5828941c268ea0d
 
 UNUSED LICENSES:
 
diff --git a/tools/const_finder/.dart_tool/package_config.json b/tools/const_finder/.dart_tool/package_config.json
index 233658b0f9bf4..73dd8bcc66263 100644
--- a/tools/const_finder/.dart_tool/package_config.json
+++ b/tools/const_finder/.dart_tool/package_config.json
@@ -7,6 +7,12 @@
       "packageUri": "lib",
       "languageVersion": "2.4"
     },
+    {
+      "name": "collection",
+      "rootUri": "../../../../third_party/dart/third_party/pkg/collection",
+      "packageUri": "lib",
+      "languageVersion": "2.10"
+    },
     {
       "name": "kernel",
       "rootUri": "../../../../third_party/dart/pkg/kernel",
@@ -32,4 +38,4 @@
       "languageVersion": "2.10"
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/tools/const_finder/.packages b/tools/const_finder/.packages
index 68fe4139fef73..3ce2ffee720f6 100644
--- a/tools/const_finder/.packages
+++ b/tools/const_finder/.packages
@@ -1,5 +1,6 @@
-# Generated by pub on 2020-07-16 10:06:29.401548.
+# Generated by pub on 2020-11-27 10:12:47.813477.
 args:../../../third_party/dart/third_party/pkg/args/lib/
+collection:../../../third_party/dart/third_party/pkg/collection/lib/
 kernel:../../../third_party/dart/pkg/kernel/lib/
 meta:../../../third_party/dart/pkg/meta/lib/
 path:../../../third_party/dart/third_party/pkg/path/lib/
diff --git a/tools/const_finder/pubspec.yaml b/tools/const_finder/pubspec.yaml
index 6411e1ef98992..cebd28c854bec 100644
--- a/tools/const_finder/pubspec.yaml
+++ b/tools/const_finder/pubspec.yaml
@@ -18,6 +18,7 @@ environment:
 
 dependencies:
   args: any
+  collection: any
   meta: any
   kernel: any
 
@@ -27,6 +28,8 @@ dev_dependencies:
 dependency_overrides:
   args:
     path: ../../../third_party/dart/third_party/pkg/args
+  collection:
+    path: ../../../third_party/dart/third_party/pkg/collection
   kernel:
     path: ../../../third_party/dart/pkg/kernel
   meta:
diff --git a/tools/const_finder/test/const_finder_test.dart b/tools/const_finder/test/const_finder_test.dart
index 62449421a3a56..86bf55aa76d1e 100644
--- a/tools/const_finder/test/const_finder_test.dart
+++ b/tools/const_finder/test/const_finder_test.dart
@@ -5,6 +5,7 @@
 import 'dart:convert' show jsonEncode;
 import 'dart:io';
 
+import 'package:collection/collection.dart';
 import 'package:const_finder/const_finder.dart';
 import 'package:path/path.dart' as path;
 
@@ -16,6 +17,22 @@ void expect<T>(T value, T expected) {
   }
 }
 
+void expectInstances(dynamic value, dynamic expected) {
+  // To ensure we ignore insertion order into maps as well as lists we use
+  // DeepCollectionEquality as well as sort the lists.
+
+  int compareByStringValue(dynamic a, dynamic b) {
+    return a['stringValue'].compareTo(b['stringValue']) as int;
+  }
+  value['constantInstances'].sort(compareByStringValue);
+  expected['constantInstances'].sort(compareByStringValue);
+  if (!const DeepCollectionEquality().equals(value, expected)) {
+    stderr.writeln('Expected: ${jsonEncode(expected)}');
+    stderr.writeln('Actual:   ${jsonEncode(value)}');
+    exitCode = -1;
+  }
+}
+
 final String basePath =
     path.canonicalize(path.join(path.dirname(Platform.script.path), '..'));
 final String fixtures = path.join(basePath, 'test', 'fixtures');
@@ -50,9 +67,9 @@ void _checkConsts() {
     classLibraryUri: 'package:const_finder_fixtures/target.dart',
     className: 'Target',
   );
-  expect<String>(
-    jsonEncode(finder.findInstances()),
-    jsonEncode(<String, dynamic>{
+  expectInstances(
+    finder.findInstances(),
+    <String, dynamic>{
       'constantInstances': <Map<String, dynamic>>[
         <String, dynamic>{'stringValue': '100', 'intValue': 100, 'targetValue': null},
         <String, dynamic>{'stringValue': '102', 'intValue': 102, 'targetValue': null},
@@ -76,7 +93,7 @@ void _checkConsts() {
         <String, dynamic>{'stringValue': 'package', 'intValue':-1, 'targetValue': null},
       ],
       'nonConstantLocations': <dynamic>[],
-    }),
+    },
   );
 
   final ConstFinder finder2 = ConstFinder(
@@ -84,14 +101,14 @@ void _checkConsts() {
     classLibraryUri: 'package:const_finder_fixtures/target.dart',
     className: 'MixedInTarget',
   );
-  expect<String>(
-    jsonEncode(finder2.findInstances()),
-    jsonEncode(<String, dynamic>{
+  expectInstances(
+    finder2.findInstances(),
+    <String, dynamic>{
       'constantInstances': <Map<String, dynamic>>[
         <String, dynamic>{'val': '13'},
       ],
       'nonConstantLocations': <dynamic>[],
-    }),
+    },
   );
 }
 
@@ -103,9 +120,9 @@ void _checkNonConsts() {
     className: 'Target',
   );
 
-  expect<String>(
-    jsonEncode(finder.findInstances()),
-    jsonEncode(<String, dynamic>{
+  expectInstances(
+    finder.findInstances(),
+    <String, dynamic>{
       'constantInstances': <dynamic>[
         <String, dynamic>{'stringValue': '1', 'intValue': 1, 'targetValue': null},
         <String, dynamic>{'stringValue': '6', 'intValue': 6, 'targetValue': null},
@@ -141,7 +158,7 @@ void _checkNonConsts() {
           'column': 25,
         }
       ]
-    }),
+    },
   );
 }