Gemfile.lock in app_perf_agent-0.0.5 vs Gemfile.lock in app_perf_agent-0.0.6

@@ -1,20 +1,20 @@
 PATH
   remote: .
   specs:
-    app_perf_agent (0.0.1)
-      oj (= 3.3.2)
+    app_perf_agent (0.0.5)
+      msgpack
       vmstat (= 2.3.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     coderay (1.1.1)
     diff-lcs (1.3)
     docile (1.1.5)
     json (2.1.0)
     method_source (0.8.2)
-    oj (3.3.2)
+    msgpack (1.1.0)
     pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
     rake (12.0.0)