diff --git a/requirements.txt b/requirements.txt
index bda85a0..d6428f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ openapi-spec-validator==0.2.8
 Pillow==7.1.2
 pycparser==2.20
 pyrsistent==0.16.0
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 six==1.15.0
 SQLAlchemy==1.3.17