diff --git a/testing_requirements.txt b/testing_requirements.txt
index 71f6a8c..0e67b3f 100644
--- a/testing_requirements.txt
+++ b/testing_requirements.txt
@@ -5,7 +5,7 @@ MarkupSafe==1.1.0
 more-itertools==6.0.0
 pendulum==2.0.4
 pluggy==0.8.1
-py==1.7.0
+py==1.8.0
 pytest==4.3.0
 python-dateutil==2.8.0
 pytz==2018.9