Gemfile.lock in partially_useful-0.2.0 vs Gemfile.lock in partially_useful-0.2.1

@@ -1,9 +1,9 @@
 PATH
   remote: .
   specs:
-    partially_useful (0.2.0)
+    partially_useful (0.2.1)
       railties (~> 4.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
@@ -29,11 +29,10 @@
     columnize (0.8.9)
     debugger-linecache (1.2.0)
     erubis (2.7.0)
     i18n (0.6.9)
     json (1.8.1)
-    json (1.8.1-java)
     minitest (5.3.4)
     rack (1.5.2)
     rack-test (0.6.2)
       rack (>= 1.0)
     railties (4.1.1)
@@ -42,10 +41,9 @@
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.3.2)
     thor (0.19.1)
     thread_safe (0.3.4)
-    thread_safe (0.3.4-java)
     tzinfo (1.2.1)
       thread_safe (~> 0.1)
 
 PLATFORMS
   java