diff --git a/requirements.txt b/requirements.txt
index dbb00cd..94f3bef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ pyhocon==0.3.35
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.3
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==17.0.0
 qtconsole==4.3.1
 regex==2017.4.5