diff --git a/requirements.txt b/requirements.txt
index 286502e..4542ad4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ mccabe==0.6.1
 mdutils==1.1.1
 pycodestyle==2.5.0
 pyflakes==2.1.1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 typing==3.7.4.1
 urllib3==1.25.9