diff --git a/Tests/CodexReleaseTests/Parallelism.cs b/Tests/CodexReleaseTests/Parallelism.cs
index d589af32..44731c5e 100644
--- a/Tests/CodexReleaseTests/Parallelism.cs
+++ b/Tests/CodexReleaseTests/Parallelism.cs
@@ -1,6 +1,6 @@
 using NUnit.Framework;
 
-[assembly: LevelOfParallelism(10)]
+[assembly: LevelOfParallelism(2)]
 namespace CodexReleaseTests
 {
 }