diff --git a/lower-constraints.txt b/lower-constraints.txt
index 940ed3e..6bc1664 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -71,7 +71,7 @@ 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-glanceclient==2.9.1
 python-keystoneclient==3.22.0