diff --git a/requirements.txt b/requirements.txt
index 0091ad2..0f67fca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ Pygments==2.2.0
 pyparsing==2.2.0
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 requests==2.19.1
 s3transfer==0.1.13
 scikit-learn==0.19.1