diff --git a/src/Lucene.Net.Tests/Support/Util/Events/TestPubSubEvent.cs b/src/Lucene.Net.Tests/Support/Util/Events/TestPubSubEvent.cs
index 710545ecc9..c838b7d097 100644
--- a/src/Lucene.Net.Tests/Support/Util/Events/TestPubSubEvent.cs
+++ b/src/Lucene.Net.Tests/Support/Util/Events/TestPubSubEvent.cs
@@ -436,6 +436,7 @@ public async Task ShouldNotExecuteOnGarbageCollectedFilterReferenceWhenNotKeepAl
         }
 
         [Test]
+        [Ignore("This test has been flakey since it was brought over from Prism")]
         public void CanAddSubscriptionWhileEventIsFiring()
         {
             var PubSubEvent = new TestablePubSubEvent<string>();