diff --git a/Gemfile.lock b/Gemfile.lock
index f2fef45..886e704 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.3)
-    json (2.2.0)
+    json (2.3.1)
     launchy (2.4.3)
       addressable (~> 2.3)
     loofah (2.3.1)