Gemfile.lock in autoprefixer-rails-0.4.20130507 vs Gemfile.lock in autoprefixer-rails-0.4.20130515

@@ -1,9 +1,9 @@
 PATH
   remote: .
   specs:
-    autoprefixer-rails (0.4.20130507)
+    autoprefixer-rails (0.4.20130515)
       execjs
 
 GEM
   remote: https://rubygems.org/
   specs:
@@ -41,14 +41,13 @@
     execjs (1.4.0)
       multi_json (~> 1.0)
     hike (1.2.2)
     i18n (0.6.1)
     journey (1.0.4)
-    json (1.7.7)
+    json (1.8.0)
     libv8 (3.11.8.17)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.23)
     multi_json (1.7.3)
     polyglot (0.3.3)
@@ -96,10 +95,10 @@
       tilt (~> 1.1, != 1.3.0)
     therubyracer (0.11.4)
       libv8 (~> 3.11.8.12)
       ref
     thor (0.18.1)
-    tilt (1.4.0)
+    tilt (1.4.1)
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.37)