diff --git a/lower-constraints.txt b/lower-constraints.txt
index bddc7c4d..420c01a5 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -48,7 +48,7 @@ pbr==2.0.0
 pep8==1.5.7
 prettytable==0.7.2
 psycopg2==2.6.2
-pydot==1.2.4
+pydot==1.4.1
 pydotplus==2.0.2
 pyflakes==0.8.1
 Pygments==2.2.0