diff --git a/Gemfile.lock b/Gemfile.lock
index 6a05bfc..66e92f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -110,7 +110,7 @@ GEM
     hirb (0.7.3)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    json (2.1.0)
+    json (2.3.1)
     jsonapi-renderer (0.2.0)
     launchy (2.4.3)
       addressable (~> 2.3)