diff --git a/requirements.txt b/requirements.txt
index 30eb9d0..a027a8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ pyparsing==2.4.7
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.24.0
 retrying==1.3.3
 six==1.15.0