diff --git a/Gemfile b/Gemfile
index 9beaa4f16..a21488c93 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ gem 'kaminari', :git => 'git://github.com/amatsuda/kaminari.git'
 # gem "memcache-client"
 
 gem 'mini_magick'
-gem 'mongoid'
+gem 'mongoid', '> 2.1', '< 3.0.0'
 gem 'mongoid-tree', :require => 'mongoid/tree'
 gem "mongo_session_store-rails3"
 gem 'mysql2'
@@ -56,8 +56,8 @@ gem 'redis','>= 2.1.1'
 gem 'chinese_pinyin', '0.4.1'
 # add rmmseg if you need search by segment words
 gem 'rmmseg-cpp-huacnlee', '0.2.9'
-gem 'redis-namespace','~> 1.0.2'
-gem 'redis-search', '0.7.1'
+gem 'redis-namespace'
+gem 'redis-search'
 
 # Gems used only for assets and not required
 # in production environments by default.