diff --git a/lower-constraints.txt b/lower-constraints.txt
index bddc7c4d..27225974 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -44,7 +44,7 @@ oslo.i18n==3.15.3
 oslo.serialization==2.18.0
 oslo.utils==3.33.0
 oslotest==3.2.0
-pbr==2.0.0
+pbr==5.5.1
 pep8==1.5.7
 prettytable==0.7.2
 psycopg2==2.6.2