diff --git a/requirements.txt b/requirements.txt
index fec22fb8..7b332e1e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ pyasn1-modules==0.2.5
 pycparser==2.19
 python-dateutil==2.8.0
 pytz==2018.9
-PyYAML==5.3.1
+PyYAML==5.4
 redis==3.3.8
 requests==2.21.0
 rsa==4.1