diff --git a/pySDC/projects/SDC_showdown/tests/test_grayscott.py b/pySDC/projects/SDC_showdown/tests/test_grayscott.py
index b6caf917ef..bf57ea7c63 100644
--- a/pySDC/projects/SDC_showdown/tests/test_grayscott.py
+++ b/pySDC/projects/SDC_showdown/tests/test_grayscott.py
@@ -2,6 +2,7 @@
 
 
 @pytest.mark.petsc
+@pytest.mark.timeout(600)
 def test_grayscott():
     from pySDC.projects.SDC_showdown.SDC_timing_GrayScott import main