diff --git a/Gemfile.lock b/Gemfile.lock
index 9249376..a66fa3c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
       multi_json (~> 1.1)
       rest-client (~> 1.6.7)
     ffi (1.9.10)
-    json (1.8.3)
+    json (2.3.0)
     jwt (1.5.2)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)