diff --git a/requirements.txt b/requirements.txt
index 6f70f76..7a4802f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ libnacl==1.6.1
 lmdb==0.94
 more-itertools==4.3.0
 pluggy==0.7.1
-py==1.5.4
+py==1.10.0
 pytest==3.7.2
 pytest-falcon==0.4.2
 python-dateutil==2.7.3