diff --git a/Gemfile.lock b/Gemfile.lock
index e627456c6..64b5bfe9e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,7 +42,7 @@ GEM
     http_parser.rb (0.6.0)
     httparty (0.16.0)
       multi_xml (>= 0.5.2)
-    json (2.1.0)
+    json (2.3.0)
     kramdown (2.1.0)
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)