diff --git a/requirements.txt b/requirements.txt
index 613dd6e..5f406a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pymongo==3.9.0
 pyrsistent==0.15.4
 python-dateutil==2.8.0
 pytz==2019.3
-PyYAML==5.2
+PyYAML==5.4
 s3transfer==0.2.1
 six==1.12.0
 sendgrid==6.4.4