diff --git a/requirements.txt b/requirements.txt
index 7d7c1f6..c234188 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ mccabe==0.6.1
 mistune==0.8.4
 pylint==2.4.4
 pyrsistent==0.15.7
-PyYAML==5.3
+PyYAML==5.4
 requests==2.23.0
 six==1.14.0
 typed-ast==1.4.1