diff --git a/Gemfile.lock b/Gemfile.lock
index 18ee784..cc1d566 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
     jekyll_github_sample (0.3.1)
       activesupport (~> 4.0)
       jekyll (~> 3.0)
-    json (2.1.0)
+    json (2.3.1)
     kramdown (1.16.2)
     libv8 (3.16.14.19)
     liquid (4.0.0)