diff --git a/requirements.txt b/requirements.txt
index 39dbf46..0c90df0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ python-dateutil==2.8.1
 python-geohash==0.8.5
 python-memo==0.1.0
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 queuelib==1.5.0
 regex==2020.1.8
 requests==2.22.0