Gemfile.lock in mongo-ejson-0.2.1 vs Gemfile.lock in mongo-ejson-0.2.2

@@ -1,16 +1,23 @@
 PATH
   remote: .
   specs:
-    mongo-ejson (0.2.1)
+    mongo-ejson (0.2.2)
 
 GEM
   remote: https://rubygems.org/
   specs:
+    ast (2.4.0)
     bson (4.4.2)
     bson (4.4.2-java)
     diff-lcs (1.3)
+    jaro_winkler (1.5.2)
+    parallel (1.13.0)
+    parser (2.6.0.0)
+      ast (~> 2.4.0)
+    powerpack (0.1.2)
+    rainbow (3.0.0)
     rake (10.5.0)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
       rspec-mocks (~> 3.8.0)
@@ -21,10 +28,20 @@
       rspec-support (~> 3.8.0)
     rspec-mocks (3.8.0)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
+    rubocop (0.63.1)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.5, != 2.5.1.1)
+      powerpack (~> 0.1)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.4.0)
+    ruby-progressbar (1.10.0)
+    unicode-display_width (1.4.1)
 
 PLATFORMS
   java
   ruby
 
@@ -32,8 +49,9 @@
   bson
   bundler (~> 2.0)
   mongo-ejson!
   rake (~> 10.0)
   rspec (~> 3.0)
+  rubocop (~> 0.63)
 
 BUNDLED WITH
    2.0.1