diff --git a/requirements.txt b/requirements.txt
index 23294a0..edf2a22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ pytest-cov==2.5.1
 python-dateutil==2.6.1
 python-editor==1.0.3
 pytz==2017.3
-PyYAML==3.12
+PyYAML==5.1
 requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.1.14