diff --git a/requirements.txt b/requirements.txt
index 48b9a19..a7cb536 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pyparsing==2.2.0
 pyshp==1.2.12
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 requests==2.20.0
 six==1.11.0
 tornado==5.0.2