diff --git a/test/error_tracker/error_notifier_test.exs b/test/error_tracker/error_notifier_test.exs
index 18169fed..bb79f89a 100644
--- a/test/error_tracker/error_notifier_test.exs
+++ b/test/error_tracker/error_notifier_test.exs
@@ -1,5 +1,5 @@
 defmodule ErrorTracker.ErrorNotifierTest do
-  use ExUnit.Case, async: false
+  use ExUnit.Case, async: true
 
   import Swoosh.TestAssertions
 
diff --git a/test/music_library/query_reporter_test.exs b/test/music_library/query_reporter_test.exs
index d9613095..144fe041 100644
--- a/test/music_library/query_reporter_test.exs
+++ b/test/music_library/query_reporter_test.exs
@@ -1,5 +1,5 @@
 defmodule MusicLibrary.QueryReporterTest do
-  use ExUnit.Case, async: false
+  use ExUnit.Case, async: true
 
   alias MusicLibrary.QueryReporter
 
diff --git a/test/music_library_web/telemetry/storage_test.exs b/test/music_library_web/telemetry/storage_test.exs
index 2ea5f492..dad1acbc 100644
--- a/test/music_library_web/telemetry/storage_test.exs
+++ b/test/music_library_web/telemetry/storage_test.exs
@@ -1,5 +1,5 @@
 defmodule MusicLibraryWeb.Telemetry.StorageTest do
-  use ExUnit.Case, async: false
+  use ExUnit.Case, async: true
 
   import ExUnit.CaptureLog
   import Telemetry.Metrics, only: [summary: 2]