diff --git a/requirements.txt b/requirements.txt
index 4aad25b..b896548 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ Pygments==2.2.0
 pyparsing==2.2.0
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==17.0.0
 qtconsole==4.3.1
 requests==2.19.1