diff --git a/src/libraries/System.Resources.Extensions/tests/BinaryResourceWriterUnitTest.cs b/src/libraries/System.Resources.Extensions/tests/BinaryResourceWriterUnitTest.cs
index 21accbca7fe127..848d5a9abcf6ed 100644
--- a/src/libraries/System.Resources.Extensions/tests/BinaryResourceWriterUnitTest.cs
+++ b/src/libraries/System.Resources.Extensions/tests/BinaryResourceWriterUnitTest.cs
@@ -526,9 +526,15 @@ public static void TestResourceManagerIsSafeForConcurrentAccessAndEnumeration(bo
 
             const int Threads = 10;
             using Barrier barrier = new(Threads);
-            Task task = Task.WhenAll(Enumerable.Range(0, Threads).Select(_ => Task.Run(WaitForBarrierThenEnumerateResources)));
-
-            Assert.True(task.Wait(TimeSpan.FromSeconds(30)));
+            Task[] tasks = Enumerable.Range(0, Threads)
+                .Select(_ => Task.Factory.StartNew(
+                    WaitForBarrierThenEnumerateResources,
+                    CancellationToken.None,
+                    TaskCreationOptions.LongRunning,
+                    TaskScheduler.Default))
+                .ToArray();
+
+            Assert.True(Task.WaitAll(tasks, TimeSpan.FromSeconds(30)));
 
             void WaitForBarrierThenEnumerateResources()
             {