diff --git a/requirements.txt b/requirements.txt
index c444018..4576e46 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ pyasn1==0.4.8
 pycodestyle==2.5.0
 pylint==2.4.4
 python-dateutil==2.8.1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 rsa==3.4.2
 s3transfer==0.3.3