diff --git a/requirements.txt b/requirements.txt
index 2263cc1..ce67e59 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ pytest==4.0.2
 pytest-cov==2.6.0
 python-dateutil==2.7.5
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 qtconsole==4.4.3
 repoze.lru==0.7