diff --git a/Gemfile.lock b/Gemfile.lock
index 4ffe431..e1f444b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
       gettext (>= 3.0.2)
       locale
     jaro_winkler (1.5.3)
-    json (2.2.0)
+    json (2.3.1)
     locale (2.1.2)
     method_source (0.9.2)
     minitar (0.9)