diff --git a/requirements.txt b/requirements.txt
index 6d1986b..2fe589d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ itsdangerous==1.1.0
 Jinja2==2.10.1
 Markdown==2.6.11
 MarkupSafe==1.0
-PyYAML==4.2b1
+PyYAML==5.4
 SQLAlchemy==1.3.6
 Werkzeug==0.15.3