diff --git a/requirements.txt b/requirements.txt
index b90116e..3ea5be4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ pytest==4.0.0
 pytest-cov==2.6.0
 python-coveralls==2.9.1
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 requests==2.20.1
 six==1.11.0
 urllib3==1.24.1