diff --git a/requirements.txt b/requirements.txt
index 129de20..11a2bc6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ pylint==1.9.2
 pyparsing==2.2.0
 python-dateutil==2.7.3
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 scipy==1.1.0
 seaborn==0.8.1
 six==1.11.0