diff --git a/app/requirements.txt b/app/requirements.txt
index 74d0c4a..64c0bbb 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -53,7 +53,7 @@ pyparsing==2.3.1
 python-dateutil==2.7.5
 pytz==2018.9
 pywinpty==0.5.5
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 scipy==1.2.0
 Send2Trash==1.5.0