diff --git a/Gemfile.lock b/Gemfile.lock
index c375160..c4d9168 100755
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,6 +102,7 @@ GEM
     mime-types (1.21)
     multi_json (1.5.1)
     multipart-post (1.2.0)
+    net-ldap (0.2.2)
     oauth2 (0.8.1)
       faraday (~> 0.8)
       httpauth (~> 0.1)
@@ -113,6 +114,11 @@ GEM
       rack
     omniauth-facebook (1.4.1)
       omniauth-oauth2 (~> 1.1.0)
+    omniauth-ldap (1.0.3)
+      net-ldap (~> 0.2.2)
+      omniauth (~> 1.0)
+      pyu-ruby-sasl (~> 0.0.3.1)
+      rubyntlm (~> 0.1.1)
     omniauth-oauth2 (1.1.1)
       oauth2 (~> 0.8.0)
       omniauth (~> 1.0)
@@ -127,6 +133,7 @@ GEM
       cocaine (~> 0.4.0)
       mime-types
     polyglot (0.3.3)
+    pyu-ruby-sasl (0.0.3.3)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)
@@ -166,6 +173,7 @@ GEM
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
       rspec-mocks (~> 2.14.0)
+    rubyntlm (0.1.1)
     sass (3.2.5)
     sass-rails (3.2.6)
       railties (~> 3.2.0)
@@ -221,6 +229,7 @@ DEPENDENCIES
   jquery-rails
   omniauth
   omniauth-facebook
+  omniauth-ldap
   paper_trail (>= 2.7.0)
   paperclip (~> 3.4.0)
   rails (= 3.2.9)