diff --git a/Gemfile.lock b/Gemfile.lock
index db885eb..9c7093d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,6 @@ GEM
       oauth2 (~> 1.0)
     hashie (3.4.6)
     highline (1.7.8)
-    json (1.8.3)
     juwelier (2.1.3)
       builder
       bundler (>= 1.13)
@@ -43,8 +42,7 @@ GEM
       rack (>= 1.2, < 3)
     rack (2.0.7)
     rake (11.3.0)
-    rdoc (4.2.2)
-      json (~> 1.4)
+    rdoc (6.3.2)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
       rspec-expectations (~> 3.5.0)