diff --git a/hedge_allocations/requirements.txt b/hedge_allocations/requirements.txt
index 07406028b..25d5aa26f 100644
--- a/hedge_allocations/requirements.txt
+++ b/hedge_allocations/requirements.txt
@@ -119,7 +119,7 @@ protobuf==3.6.0
 psutil==5.2.2
 psycopg2==2.7.1
 ptyprocess==0.5.1
-py==1.4.33
+py==1.10.0
 pycosat==0.6.3
 pycparser==2.17
 pycrypto==2.6.1