diff --git a/Gemfile.lock b/Gemfile.lock
index aa944cd..0997ba6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GEM
     docile (1.1.5)
     httparty (0.16.2)
       multi_xml (>= 0.5.2)
-    json (2.1.0)
+    json (2.3.1)
     multi_xml (0.6.0)
     redcarpet (3.4.0)
     rspec (3.7.0)