diff --git a/requirements.txt b/requirements.txt
index 435c81c..3d639a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pyasn1==0.4.8
 pyasn1-modules==0.2.8
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 regex==2020.1.8
 rsa==4.0
 six==1.14.0