diff --git a/lower-constraints.txt b/lower-constraints.txt
index 88b5ca6c..41b8b010 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -72,7 +72,7 @@ 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==3.5.0
 python-glanceclient==2.9.1
 python-ironicclient==2.3.0