diff --git a/Gemfile.lock b/Gemfile.lock
index 442752e..bb2d644 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
     hashdiff (0.3.2)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    json (2.0.3)
+    json (2.3.1)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)