diff --git a/requirements.txt b/requirements.txt
index b2656bb..5460e2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ pyparsing==2.3.0
 pytest==4.0.2
 python-dateutil==2.7.5
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 qtconsole==4.4.3
 requests==2.21.0