diff --git a/DataHack2019-DataLearn/requirements.txt b/DataHack2019-DataLearn/requirements.txt
index 3715fbd..bf13ed5 100644
--- a/DataHack2019-DataLearn/requirements.txt
+++ b/DataHack2019-DataLearn/requirements.txt
@@ -71,7 +71,7 @@ pytest==5.1.2
 pytest-pylint==0.14.1
 python-dateutil==2.8.0
 pytz==2019.2
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 qtconsole==4.5.4
 requests==2.22.0