diff --git a/requirements.txt b/requirements.txt
index ce4231d..a6aec0d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ Flask_PyMongo==2.3.0
 requests==2.23.0
 Flask_APScheduler==1.11.0
 PyJWT==1.7.1
-PyYAML==5.3.1
+PyYAML==5.4
 secrets==1.0.2