diff --git a/requirements.txt b/requirements.txt
index 2ede8f2..339cb50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ parver==0.3.0
 protobuf==3.12.2
 pulumi==2.3.0
 pulumi-vsphere==2.3.4
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 semver==2.10.1
 six==1.15.0