diff --git a/requirements.txt b/requirements.txt
index 4976846..573b229 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cryptography==3.2
 Jinja2==2.11.2
 MarkupSafe==1.1.1
 pycparser==2.20
-PyYAML==5.3.1
+PyYAML==5.4
 ruamel.yaml==0.16.10
 ruamel.yaml.clib==0.2.0
 six==1.15.0