diff --git a/requirents.txt b/requirents.txt
index 2ec9500..9a114d6 100644
--- a/requirents.txt
+++ b/requirents.txt
@@ -32,7 +32,7 @@ protobuf==3.6.0
 Pygments==2.2.0
 python-dateutil==2.7.3
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 requests==2.19.1
 s3transfer==0.1.13
 scikit-learn==0.19.2