diff --git a/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/CancellationTokenTests.cs b/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/CancellationTokenTests.cs
index 5759199752ad66..72df26fa4c9886 100644
--- a/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/CancellationTokenTests.cs
+++ b/src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/CancellationTokenTests.cs
@@ -874,7 +874,6 @@ static void FinalizeHelper(DisposeTracker disposeTracker)
 
         // Several tests for deriving custom user types from CancellationTokenSource
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/94486", typeof(PlatformDetection), nameof(PlatformDetection.IsWasmThreadingSupported))]
         public static void DerivedCancellationTokenSource()
         {
             // Verify that a derived CTS is functional
diff --git a/src/libraries/System.Threading/tests/MutexTests.cs b/src/libraries/System.Threading/tests/MutexTests.cs
index ab2527db0f16df..6b06baeb760344 100644
--- a/src/libraries/System.Threading/tests/MutexTests.cs
+++ b/src/libraries/System.Threading/tests/MutexTests.cs
@@ -421,7 +421,6 @@ public static IEnumerable<object[]> AbandonExisting_MemberData()
         }
 
         [ConditionalTheory(typeof(PlatformDetection), nameof(PlatformDetection.IsThreadingSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/91547", typeof(PlatformDetection), nameof(PlatformDetection.IsWasmThreadingSupported))]
         [MemberData(nameof(AbandonExisting_MemberData))]
         public void AbandonExisting(
             string name,