diff --git a/requirements.txt b/requirements.txt
index b699020..fc1f98a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ Click==7.0
 docutils==0.15.2
 jmespath==0.9.4
 python-dateutil==2.8.1
-PyYAML==5.3
+PyYAML==5.4
 s3transfer==0.3.1
 six==1.14.0
 urllib3==1.25.7