diff --git a/lib/grack/Gemfile b/lib/grack/Gemfile
index 80932e7e4..2aa7df2fe 100644
--- a/lib/grack/Gemfile
+++ b/lib/grack/Gemfile
@@ -1,4 +1,4 @@
-source "https://ruby.taobao.org"
+source 'https://rubygems.org/'
 
 gemspec