diff --git a/pytest.ini b/pytest.ini
index 783349b29..61306c81b 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -5,6 +5,6 @@ log_cli = 1
 log_cli_level = WARNING
 log_cli_format = %(asctime)s [%(levelname)8s] %(message)s (%(filename)s:%(lineno)s)
 log_cli_date_format=%Y-%m-%d %H:%M:%S
-addopts = --strict-markers
+addopts = --strict-markers -m 'not slow'
 markers =
     slow: marks tests as slow (deselect with '-m "not slow"')