diff --git a/600/requirements.txt b/600/requirements.txt
index 06d1d35..d32479c 100644
--- a/600/requirements.txt
+++ b/600/requirements.txt
@@ -3,7 +3,7 @@ cycler==0.10.0
 matplotlib==2.1.0
 numpy==1.13.3
 pathtools==0.1.2
-py==1.4.34
+py==1.10.0
 pyparsing==2.2.0
 pytest==3.2.3
 python-dateutil==2.6.1