diff --git a/engine/src/flutter/ci/builders/linux_web_engine.json b/engine/src/flutter/ci/builders/linux_web_engine.json
index b8e3a256120..518284ec47d 100644
--- a/engine/src/flutter/ci/builders/linux_web_engine.json
+++ b/engine/src/flutter/ci/builders/linux_web_engine.json
@@ -1,6 +1,6 @@
 {
   "_comment": "THIS IS A GENERATED FILE. Do not edit this file directly.",
-  "_comment2": "See `generated_builder_json.dart` for the generator code",
+  "_comment2": "See `generate_builder_json.dart` for the generator code",
   "builds": [
     {
       "name": "web_tests/artifacts",
@@ -1095,7 +1095,7 @@
       "recipe": "engine_v2/tester_engine",
       "drone_dimensions": [
         "device_type=none",
-        "os=Mac"
+        "os=Mac-12"
       ],
       "gclient_variables": {
         "download_android_deps": false
@@ -1127,7 +1127,7 @@
       "recipe": "engine_v2/tester_engine",
       "drone_dimensions": [
         "device_type=none",
-        "os=Mac"
+        "os=Mac-12"
       ],
       "gclient_variables": {
         "download_android_deps": false
@@ -1159,7 +1159,7 @@
       "recipe": "engine_v2/tester_engine",
       "drone_dimensions": [
         "device_type=none",
-        "os=Mac"
+        "os=Mac-12"
       ],
       "gclient_variables": {
         "download_android_deps": false
@@ -1191,7 +1191,7 @@
       "recipe": "engine_v2/tester_engine",
       "drone_dimensions": [
         "device_type=none",
-        "os=Mac"
+        "os=Mac-12"
       ],
       "gclient_variables": {
         "download_android_deps": false
@@ -1223,7 +1223,7 @@
       "recipe": "engine_v2/tester_engine",
       "drone_dimensions": [
         "device_type=none",
-        "os=Mac"
+        "os=Mac-12"
       ],
       "gclient_variables": {
         "download_android_deps": false
diff --git a/engine/src/flutter/lib/web_ui/dev/generate_builder_json.dart b/engine/src/flutter/lib/web_ui/dev/generate_builder_json.dart
index c4443063a6b..5e6733237fc 100644
--- a/engine/src/flutter/lib/web_ui/dev/generate_builder_json.dart
+++ b/engine/src/flutter/lib/web_ui/dev/generate_builder_json.dart
@@ -9,7 +9,7 @@ import 'felt_config.dart';
 String generateBuilderJson(FeltConfig config) {
   final Map<String, dynamic> outputJson = <String, dynamic>{
     '_comment': 'THIS IS A GENERATED FILE. Do not edit this file directly.',
-    '_comment2': 'See `generated_builder_json.dart` for the generator code',
+    '_comment2': 'See `generate_builder_json.dart` for the generator code',
     'builds': <dynamic>[
       _getArtifactBuildStep(),
       for (final TestBundle bundle in config.testBundles)
@@ -113,7 +113,10 @@ Iterable<dynamic> _getAllTestSteps(List<TestSuite> suites) {
       suite.runConfig.browser == BrowserName.chrome ||
       suite.runConfig.browser == BrowserName.firefox
     ),
-    ..._getTestStepsForPlatform(suites, 'Mac', (TestSuite suite) =>
+    // TODO(jacksongardner): Stop filtering to Mac-12 after macOS 13 issues are fixed:
+    // https://github.com/flutter/flutter/issues/136274,
+    // https://github.com/flutter/flutter/issues/136279
+    ..._getTestStepsForPlatform(suites, 'Mac', specificOS: 'Mac-12', (TestSuite suite) =>
       suite.runConfig.browser == BrowserName.safari
     ),
     ..._getTestStepsForPlatform(suites, 'Windows', (TestSuite suite) =>
@@ -129,7 +132,9 @@ Iterable<dynamic> _getAllTestSteps(List<TestSuite> suites) {
 Iterable<dynamic> _getTestStepsForPlatform(
   List<TestSuite> suites,
   String platform,
-  bool Function(TestSuite suite) filter) {
+  bool Function(TestSuite suite) filter, {
+  String? specificOS,
+}) {
   return suites
     .where(filter)
     .map((TestSuite suite) => <String, dynamic>{
@@ -137,7 +142,7 @@ Iterable<dynamic> _getTestStepsForPlatform(
         'recipe': 'engine_v2/tester_engine',
         'drone_dimensions': <String>[
           'device_type=none',
-          'os=$platform',
+          'os=${specificOS ?? platform}',
         ],
         'gclient_variables': <String, dynamic>{
           'download_android_deps': false,