diff --git a/services/auth/requirements.txt b/services/auth/requirements.txt
index 9f08d80..94cd1ef 100644
--- a/services/auth/requirements.txt
+++ b/services/auth/requirements.txt
@@ -25,7 +25,7 @@ PyJWT==1.5.0
 python-dateutil==2.6.0
 python-editor==1.0.3
 python-mimeparse==1.6.0
-PyYAML==3.12
+PyYAML==5.4
 requests==2.14.2
 six==1.10.0
 SQLAlchemy==1.1.10