diff --git a/Gemfile.lock b/Gemfile.lock
index 9bdd15e..b5e2d38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,14 +2,11 @@ PATH
   remote: .
   specs:
     weibo2 (0.0.1)
-      rails (~> 3.1.0)
+      oauth2 (~> 0.5.1)
 
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (3.1.1)
-      actionpack (= 3.1.1)
-      mail (~> 2.3.0)
     actionpack (3.1.1)
       activemodel (= 3.1.1)
       activesupport (= 3.1.1)
@@ -25,30 +22,21 @@ GEM
       activesupport (= 3.1.1)
       builder (~> 3.0.0)
       i18n (~> 0.6)
-    activerecord (3.1.1)
-      activemodel (= 3.1.1)
-      activesupport (= 3.1.1)
-      arel (~> 2.2.1)
-      tzinfo (~> 0.3.29)
-    activeresource (3.1.1)
-      activemodel (= 3.1.1)
-      activesupport (= 3.1.1)
     activesupport (3.1.1)
       multi_json (~> 1.0)
-    arel (2.2.1)
     builder (3.0.0)
     diff-lcs (1.1.3)
     erubis (2.7.0)
+    faraday (0.17.3)
+      multipart-post (>= 1.2, < 3)
     hike (1.2.1)
     i18n (0.6.0)
     json (1.6.1)
-    mail (2.3.0)
-      i18n (>= 0.4.0)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.17.2)
     multi_json (1.0.3)
-    polyglot (0.3.2)
+    multipart-post (2.1.1)
+    oauth2 (0.5.2)
+      faraday (~> 0.7)
+      multi_json (~> 1.0)
     rack (1.3.5)
     rack-cache (1.1)
       rack (>= 0.4)
@@ -58,14 +46,6 @@ GEM
       rack
     rack-test (0.6.1)
       rack (>= 1.0)
-    rails (3.1.1)
-      actionmailer (= 3.1.1)
-      actionpack (= 3.1.1)
-      activerecord (= 3.1.1)
-      activeresource (= 3.1.1)
-      activesupport (= 3.1.1)
-      bundler (~> 1.0)
-      railties (= 3.1.1)
     railties (3.1.1)
       actionpack (= 3.1.1)
       activesupport (= 3.1.1)
@@ -73,7 +53,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.6)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rdoc (3.11)
       json (~> 1.4)
     rspec (2.6.0)
@@ -92,13 +72,9 @@ GEM
     sprockets (2.0.3)
       hike (~> 1.2)
       rack (~> 1.0)
-      tilt (!= 1.3.0, ~> 1.1)
+      tilt (~> 1.1, != 1.3.0)
     thor (0.14.6)
     tilt (1.3.3)
-    treetop (1.4.10)
-      polyglot
-      polyglot (>= 0.3.1)
-    tzinfo (0.3.30)
 
 PLATFORMS
   ruby