diff --git a/AUTHORS.txt b/AUTHORS.txt
index 7552a95..eda6edf 100644
--- a/AUTHORS.txt
+++ b/AUTHORS.txt
@@ -5,3 +5,4 @@ Jerry Ma
 Luca Soldaini
 Simon Stiebellehner
 Songwei Ge
+Cheng Rui
diff --git a/setup.py b/setup.py
index 1a06b73..d6edabd 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='pyltr',
-    version='0.2.3',
+    version='0.2.4',
     description='Python learning to rank (LTR) toolkit.',
     author='Jerry Ma',
     author_email='jmnospam@mail.com',