diff --git a/requirements.txt b/requirements.txt
index 3139809..a7b19dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ Jinja2==2.11.1
 Markdown==3.2.1
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
-PyYAML==5.3
+PyYAML==5.4
 Werkzeug==1.0.0