diff --git a/docs/requirements.docs.txt b/docs/requirements.docs.txt
index 2d96155..88d63f7 100644
--- a/docs/requirements.docs.txt
+++ b/docs/requirements.docs.txt
@@ -11,7 +11,7 @@ MarkupSafe==1.1.1
 pathtools==0.1.2
 Pygments
 pytz
-PyYAML==5.1
+PyYAML==5.4
 singledispatch==3.4.0.3
 six
 snowballstemmer==1.2.1