diff --git a/requirements.txt b/requirements.txt
index 0925da1..d44ba92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ Pillow==4.3.0
 protobuf==3.5.1
 pymongo==3.6.0
 python-dateutil==2.6.1
-PyYAML==3.12
+PyYAML==5.4
 redis==2.10.6
 requests==2.18.4
 s3transfer==0.1.11