diff --git a/requirements_dev.txt b/requirements_dev.txt
index 2b5d8cb..636625a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -64,7 +64,7 @@ pyrsistent==0.15.5
 python-dateutil==2.8.0
 python-decouple==3.1
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 readme-renderer==24.0
 redis==3.3.11
 requests==2.22.0