diff --git a/test/exprof_test.exs b/test/exprof_test.exs
index d863fb6..e5307d4 100644
--- a/test/exprof_test.exs
+++ b/test/exprof_test.exs
@@ -1,5 +1,5 @@
 defmodule ExprofTest do
-  use ExUnit.Case, async: true
+  use ExUnit.Case, async: false
   import ExUnit.CaptureIO
 
   test "sample runner" do