diff --git a/requirements.txt b/requirements.txt
index 1c8a8c0..9ce5504 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ pyparsing==2.2.2
 pytest==3.8.1
 pytest-cov==2.6.0
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 radon==2.2.0
 requests==2.20.0
 six==1.11.0