diff --git a/requirements.txt b/requirements.txt
index 18903ee..40ae334 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ mccabe==0.6.1
 ordered-set==3.1.1
 pylint==2.4.4
 pyparsing==2.4.6
-PyYAML==5.3
+PyYAML==5.4
 six==1.14.0
 skidl==0.0.28
 typed-ast==1.4.1