diff --git a/flask_app/requirements.txt b/flask_app/requirements.txt
index 0e7452f..a1cf20a 100644
--- a/flask_app/requirements.txt
+++ b/flask_app/requirements.txt
@@ -25,7 +25,7 @@ pyasn1==0.4.7
 pyasn1-modules==0.2.6
 python-dateutil==2.6.1
 python-slugify==1.2.4
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 rsa==4.0
 s3transfer==0.2.1