diff --git a/src/libraries/System.Runtime.InteropServices/tests/LibraryImportGenerator.Tests/CollectionMarshallingFails.cs b/src/libraries/System.Runtime.InteropServices/tests/LibraryImportGenerator.Tests/CollectionMarshallingFails.cs
index 9336f8caf8fe0e..eab34000e45490 100644
--- a/src/libraries/System.Runtime.InteropServices/tests/LibraryImportGenerator.Tests/CollectionMarshallingFails.cs
+++ b/src/libraries/System.Runtime.InteropServices/tests/LibraryImportGenerator.Tests/CollectionMarshallingFails.cs
@@ -107,7 +107,8 @@ public static partial void NegateBoolsRef2D_ClearMarshalling(
     public class CollectionMarshallingFails
     {
         [Fact]
-        public void UTFStringConversionFailures()
+        [SkipOnCI("Allocates enough memory that the OOM killer can kill the process on our Helix machines.")]
+        public void BigUTFStringConversionFailures()
         {
             bool threw = false;
             try