diff --git a/requirements.txt b/requirements.txt
index 9bdf833..4302160 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ Pygments==2.2.0
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==16.0.2
 qtconsole==4.3.0
 requests==2.18.1