diff --git a/requirements.txt b/requirements.txt
index 567bc24..8cb5c0c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ PySocks==1.6.7
 python-dateutil==2.6.1
 python-http-client==3.0.0
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 sendgrid==5.0.0
 six==1.10.0