diff --git a/requirements.txt b/requirements.txt
index a980fa0..4ff9d32 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ numpy==1.17.4
 pandas==0.25.3
 python-dateutil==2.8.1
 pytz==2019.3
-pyyaml==5.3
+pyyaml==5.4
 requests==2.23.0
 scipy==1.3.2
 six==1.13.0