diff --git a/setup.cfg b/setup.cfg
index bef3558a5..d08d9968c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -73,7 +73,7 @@ dev =
     nbsphinx
     pycodestyle
     pytest-cov<2.6.0
-    pytest>=3.2
+    pytest>=3.2,<4.6
     sphinx
     sphinx_rtd_theme>=0.4.3
     nbsphinx