Gemfile.lock in barnes-0.0.6 vs Gemfile.lock in barnes-0.0.7

@@ -1,20 +1,21 @@
 PATH
   remote: .
   specs:
-    barnes (0.0.6)
+    barnes (0.0.7)
       multi_json (~> 1)
       statsd-ruby (~> 1.1)
 
 GEM
   remote: https://rubygems.org/
   specs:
     docile (1.1.5)
     json (2.1.0)
     minitest (5.10.3)
     multi_json (1.13.1)
-    puma (3.11.4)
+    puma (3.12.0)
+    rack (2.0.5)
     rake (10.5.0)
     simplecov (0.15.1)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
@@ -28,9 +29,10 @@
 DEPENDENCIES
   barnes!
   bundler (~> 1.15)
   minitest (~> 5.3)
   puma (~> 3.11)
+  rack (~> 2)
   rake (~> 10)
   simplecov
   wait_for_it (~> 0.1)
 
 BUNDLED WITH