diff --git a/lower-constraints.txt b/lower-constraints.txt
index 9909160..13bcda9 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -3,7 +3,7 @@ appdirs==1.4.3
 asn1crypto==0.24.0
 Babel==2.3.4
 certifi==2018.1.18
-cffi==1.11.5
+cffi==1.14
 chardet==3.0.4
 cliff==2.11.0
 cmd2==0.8.1