diff --git a/requirements.txt b/requirements.txt
index bca031f..45d43a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ python-dateutil==2.8.0
 python-dotenv==0.10.1
 python3-openid==3.1.0
 pytz==2019.1
-PyYAML==5.1
+PyYAML==5.4
 pyzmq==18.0.1
 requests==2.21.0
 Send2Trash==1.5.0