diff --git a/.github/workflows/dart_ci.yaml b/.github/workflows/dart_ci.yaml
index 839b174..f22689a 100644
--- a/.github/workflows/dart_ci.yaml
+++ b/.github/workflows/dart_ci.yaml
@@ -25,9 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sdk: [ 2.19.6 ]
-        # TODO: Add stable and beta sdk's as a separate effort (FEDX-1911)[https://jira.atl.workiva.net/browse/FEDX-1911]
-        # sdk: [ 2.19.6, stable, beta ]
+        sdk: [ 2.19.6, stable, beta ]
     steps:
       - uses: actions/checkout@v4
       - uses: dart-lang/setup-dart@v1
@@ -48,9 +46,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sdk: [ 2.19.6 ]
-        # TODO: Add stable and beta sdk's as a separate effort (FEDX-1911)[https://jira.atl.workiva.net/browse/FEDX-1911]
-        # sdk: [ 2.19.6, stable, beta ]
+        sdk: [ 2.19.6, stable, beta ]
     steps:
       - uses: actions/checkout@v4
       - uses: dart-lang/setup-dart@v1
diff --git a/bin/browser_aggregate_tests.dart b/bin/browser_aggregate_tests.dart
index 5091d92..bae3ed1 100644
--- a/bin/browser_aggregate_tests.dart
+++ b/bin/browser_aggregate_tests.dart
@@ -171,6 +171,7 @@ Future<void> buildTests(List<String> testPaths,
     'run',
     'build_runner',
     'build',
+    '--delete-conflicting-outputs',
     ...buildRunnerBuildArgs(testPaths,
         release: release, userBuildArgs: userBuildArgs),
   ];
diff --git a/pubspec.yaml b/pubspec.yaml
index 1fae376..cc700a3 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -20,7 +20,7 @@ dependencies:
   json_annotation: ^4.1.0
   path: ^1.8.0
   test: ^1.17.12
-  test_core: ">=0.4.2 <0.6.0"
+  test_core: ">=0.4.2 <0.7.0"
   yaml: ^3.1.0
 
 dev_dependencies:
diff --git a/test/bin/browser_aggregate_tests_test.dart b/test/bin/browser_aggregate_tests_test.dart
index 79c5b45..4abcd9d 100644
--- a/test/bin/browser_aggregate_tests_test.dart
+++ b/test/bin/browser_aggregate_tests_test.dart
@@ -95,7 +95,7 @@ void main() {
           emitsThrough('Reading browser aggregate test config...'),
           emitsThrough('Found 1 aggregate tests to run.'),
           emitsThrough(
-              'dart run build_runner build --build-filter=test/templates/default_template.browser_aggregate_test.**'),
+              'dart run build_runner build --delete-conflicting-outputs --build-filter=test/templates/default_template.browser_aggregate_test.**'),
           emitsThrough(contains('Succeeded')),
         ]));
     await process.shouldExit(0);
@@ -116,7 +116,7 @@ void main() {
           emitsThrough('Reading browser aggregate test config...'),
           emitsThrough('Found 1 aggregate tests to run.'),
           emitsThrough(
-              'dart run build_runner build -c custom --release --build-filter=test/templates/default_template.browser_aggregate_test.**'),
+              'dart run build_runner build --delete-conflicting-outputs -c custom --release --build-filter=test/templates/default_template.browser_aggregate_test.**'),
           emitsThrough(contains('Succeeded')),
         ]));
     await process.shouldExit(0);