diff --git a/requirements.txt b/requirements.txt
index d04801a..4ac7ce8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ pykalman==0.9.5
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==17.0.0
 qtconsole==4.3.1
 requests==2.18.4