diff --git a/requirements.txt b/requirements.txt
index 91620f4..c4a6d5e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ pylint==2.2.2
 pyparsing==2.3.1
 python-dateutil==2.8.0
 pytz==2018.9
-PyYAML==3.13
+PyYAML==5.4
 scipy==1.1.0
 seaborn==0.9.0
 six==1.11.0