diff --git a/requirements.txt b/requirements.txt
index ff21165..d64bba5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ pyreportjasper==1.0.2
 pysolr==3.7.0
 python-memcached==1.58
 pytz==2017.3
-PyYAML==5.3
+PyYAML==5.4
 redis==2.10.6
 requests==2.23.0
 setuptools-scm==2.1.0