diff --git a/requirements.txt b/requirements.txt
index 9d51a0c..3161c17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ pytest==5.0.1
 pytest-cov==2.7.1
 pytest-django==3.5.1
 pytz==2019.1
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 restructuredtext-lint==1.3.0
 six==1.12.0