diff --git a/.gitignore b/.gitignore
index f42636da2..9b4f7711f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,7 +15,6 @@ analytics.js
 .sass-cache
 ruby
 bourbon
-Gemfile.lock
 
 Backbone.Overview
 tags
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 000000000..c599f355c
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,15 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    bourbon (4.2.1)
+      sass (~> 3.4)
+      thor
+    sass (3.4.13)
+    thor (0.19.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bourbon
+  sass (~> 3.3)