diff --git a/requirements.txt b/requirements.txt
index 0f3479e..e02bfe4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ pyparsing==2.2.0
 pytablereader==0.13.3
 python-dateutil==2.6.1
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 qiniu==7.1.4
 requests==2.18.4
 scikit-learn==0.18.1