diff --git a/Gemfile.lock b/Gemfile.lock
index a3b5a55..7f71437 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,6 @@ GEM
       nokogiri (= 1.5.10)
       rake
       rdoc
-    json (1.8.1)
     jwt (1.2.0)
     minitest (5.4.3)
     multi_json (1.10.1)
@@ -39,8 +38,7 @@ GEM
       rack (~> 1.2)
     rack (1.6.0)
     rake (10.4.2)
-    rdoc (4.2.0)
-      json (~> 1.4)
+    rdoc (6.3.2)
 
 PLATFORMS
   ruby