diff --git a/requirements.txt b/requirements.txt
index c7e5c24..372f31b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ PyJWT==1.6.4
 pymongo==3.7.1
 python-dateutil==2.7.3
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 redis==2.10.6
 requests==2.19.1
 requests-oauthlib==1.0.0