diff --git a/requirements.txt b/requirements.txt
index 5200dc5..7eb41f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ numpy==1.18.1
 pandas==1.0.1
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 requests==2.22.0
 six==1.14.0
 urllib3==1.25.8