diff --git a/Gemfile.lock b/Gemfile.lock
index 312357431..66c4239ac 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,6 +71,12 @@ GEM
       execjs
       json
     concurrent-ruby (1.0.2)
+    coveralls (0.8.16)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.12.0)
+      term-ansicolor (~> 1.3.0)
+      thor (~> 0.19.1)
+      tins (>= 1.6.0, < 2)
     daemons (1.2.4)
     delayed_job (4.1.2)
       activesupport (>= 3.0, < 5.1)
@@ -336,6 +342,8 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.11)
+    term-ansicolor (1.3.2)
+      tins (~> 1.0)
     test-unit (3.2.1)
       power_assert
     therubyracer (0.12.2)
@@ -344,6 +352,7 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.5)
     tilt (2.0.5)
+    tins (1.13.0)
     twitter (5.16.0)
       addressable (~> 2.3)
       buftok (~> 0.2.0)
@@ -385,6 +394,7 @@ DEPENDENCIES
   coffee-rails
   coffee-script-source
   coffeelint
+  coveralls
   daemons
   delayed_job_active_record
   diffy
@@ -446,4 +456,4 @@ RUBY VERSION
    ruby 2.3.1p112
 
 BUNDLED WITH
-   1.12.5
+   1.13.6