diff --git a/docs/requirements.txt b/docs/requirements.txt
index c8231bb..4a85617 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -40,7 +40,7 @@ pytest-forked==1.0.2
 pytest-mock==1.10.4
 pytest-xdist==1.29.0
 pytz==2019.1
-PyYAML==5.1.1
+PyYAML==5.4
 readme-renderer==24.0
 redis==3.3.10
 requests==2.22.0