diff --git a/requirements.txt b/requirements.txt
index f63bb82..086643f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ Pygments==2.1.3
 pyparsing==2.1.1
 python-dateutil==2.5.2
 pytz==2016.3
-PyYAML==3.11
+PyYAML==5.4
 pyzmq==15.2.0
 qtconsole==4.2.1
 scipy==0.17.0