diff --git a/test/Microsoft.ML.TimeSeries.Tests/Properties/AssemblyInfo.cs b/test/Microsoft.ML.TimeSeries.Tests/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..70da298f72
--- /dev/null
+++ b/test/Microsoft.ML.TimeSeries.Tests/Properties/AssemblyInfo.cs
@@ -0,0 +1,7 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Xunit;
+
+[assembly: CollectionBehavior(DisableTestParallelization = true)]