diff --git a/Gemfile b/Gemfile
index 19881bb4..26aaddd1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,10 +2,11 @@ source 'http://rubygems.org'
 
 gem 'rails', '3.0.3'
 
-gem 'bson_ext'
+gem 'bson_ext', '1.2.4'
 gem 'carrierwave'
 gem 'devise'
 gem 'mini_magick'
+
 # gem 'rblog', :path => 'lib/rblog'
 gem 'mongoid', '2.0.0'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index f9f12dd8..590a2279 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bson_ext
+  bson_ext (= 1.2.4)
   carrierwave
   devise
   mini_magick