diff --git a/lower-constraints.txt b/lower-constraints.txt
index 51c3a71921..08513b3eda 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.10
 alembic==0.8.10
 amqp==2.1.1
-appdirs==1.3.0
+appdirs==1.4.3
 asn1crypto==0.23.0
 Babel==2.3.4
 beautifulsoup4==4.6.0