diff --git a/requirements.txt b/requirements.txt
index 8e5a834..0be3e51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ docutils==0.14
 jmespath==0.9.4
 pkg-resources==0.0.0
 python-dateutil==2.8.0
-PyYAML==5.1.1
+PyYAML==5.4
 s3transfer==0.2.1
 six==1.12.0
 urllib3==1.25.3