diff --git a/Gemfile.lock b/Gemfile.lock
index 997a06ff..79594808 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,9 +1,3 @@
-GIT
-  remote: git://github.com/borovsky/tcpdf.git
-  revision: 756b43580a47be916fc9138eaeb693c95507bc1a
-  specs:
-    tcpdf (1.53.0)
-
 GIT
   remote: git://github.com/technoweenie/acts_as_versioned.git
   revision: 63b1fc8529d028fae632fe80ec0cb25df56cd76b
@@ -11,6 +5,12 @@ GIT
     acts_as_versioned (0.6.0)
       activerecord (>= 3.0.9)
 
+GIT
+  remote: https://github.com/borovsky/tcpdf.git
+  revision: 756b43580a47be916fc9138eaeb693c95507bc1a
+  specs:
+    tcpdf (1.53.0)
+
 GEM
   remote: http://rubygems.org/
   specs:
@@ -77,6 +77,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.7.0)
+    concurrent-ruby (1.1.10)
     coveralls (0.7.0)
       multi_json (~> 1.3)
       rest-client
@@ -144,7 +145,8 @@ GEM
       railties (>= 3.1, < 4.1)
     highline (1.6.21)
     hike (1.2.3)
-    i18n (0.6.9)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.1.4)
       railties (>= 3.0, < 5.0)