diff --git a/lower-constraints.txt b/lower-constraints.txt
index b88fa70..09b7722 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -75,7 +75,7 @@ pymongo==3.6.1
 pyOpenSSL==17.5.0
 pyparsing==2.2.0
 pyperclip==1.6.0
-pyScss==1.3.4
+pyScss==1.3.7
 python-cinderclient==5.0.0
 python-dateutil==2.7.0
 python-glanceclient==2.9.1