diff --git a/requirements.txt b/requirements.txt
index b2c22ecf37d..f9c38940f4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ passlib==1.6.5
 paste==1.7.5.1
 pastedeploy==1.5.2        # via pastescript, pylons
 pastescript==2.0.2        # via pylons
-pbr==1.10.0               # via sqlalchemy-migrate
+pbr==5.1.3                # via sqlalchemy-migrate
 polib==1.0.7
 psycopg2==2.7.3.2
 pygments==2.2.0           # via weberror