diff --git a/requirements.txt b/requirements.txt
index 4c9fc96..0d5650c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ py-postgresql==1.2.1
 python-dateutil==2.7.3
 python-editor==1.0.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 scipy==1.1.0
 six==1.11.0