diff --git a/requirements.txt b/requirements.txt
index 6483ba2..934d4b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -76,7 +76,7 @@ pytest-asyncio==0.10.0
 pytest-django==3.5.1
 python-dateutil==2.8.0
 pytz==2019.2
-PyYAML==5.1.2
+PyYAML==5.4
 redis==3.3.6
 requests==2.22.0
 six==1.12.0