diff --git a/tests/Acoustics.Test/Shared/ProcessRunnerTests.cs b/tests/Acoustics.Test/Shared/ProcessRunnerTests.cs
index 13fc2375f..8c40a111f 100644
--- a/tests/Acoustics.Test/Shared/ProcessRunnerTests.cs
+++ b/tests/Acoustics.Test/Shared/ProcessRunnerTests.cs
@@ -20,7 +20,8 @@ public class ProcessRunnerTests : OutputDirectoryTest
         [RetryTestMethod(3)]
         public void ProcessRunnerDoesNotDeadlock()
         {
-            var result = Enumerable.Range(0, 50).AsParallel().Select(this.RunFfprobe).ToArray();
+            var runs = TestHelper.OnContinuousIntegrationServer ? 10 : 50;
+            var result = Enumerable.Range(0, runs).AsParallel().Select(this.RunFfprobe).ToArray();
 
             Assert.IsTrue(result.All());
         }