diff --git a/requirements.txt b/requirements.txt
index 6463a80..eed09cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ protobuf==3.6.1
 pyparsing==2.3.1
 python-dateutil==2.7.5
 pytz==2018.9
-pyyaml==3.13
+pyyaml==5.4
 requests==2.21.0
 s3transfer==0.1.13
 scikit-learn==0.20.2