diff --git a/src/requirements.txt b/src/requirements.txt
index 9d87d8a..f6bfdde 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -57,7 +57,7 @@ pyspark==2.3.0
 pytest==3.6.0
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 requests==2.21.0
 retrying==1.3.3
 s3transfer==0.1.13