diff --git a/requirements.txt b/requirements.txt
index b1611ffb02..e9d3777213 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ pypng==0.0.20
 PyQRCode==1.2.1
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.1
+PyYAML==5.3.1
 rauth==0.7.3
 redis>=3.0
 requests-oauthlib==1.3.0