diff --git a/requirements.txt b/requirements.txt
index 16cc7f1..91e0fb9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ mongoengine==0.15.3
 more-itertools==4.3.0
 pathlib2==2.3.2
 pluggy==0.7.1
-py==1.6.0
+py==1.10.0
 pymongo==3.7.1
 pytest==3.8.0
 python-dateutil==2.7.3