diff --git a/requirements.txt b/requirements.txt
index 4e35ea5..fa4ceb6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ pytest==5.1.3
 python-apt==1.8.4
 python-dateutil==2.8.0
 python-gilt==1.2.1
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 ruamel.yaml==0.16.5
 ruamel.yaml.clib==0.1.2