diff --git a/requirements.txt b/requirements.txt
index f4a6bcd..9eea2ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ pyparsing==2.4.7
 python-dateutil==2.8.1
 python-multipart==0.0.5
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 scipy==1.4.1
 six==1.14.0