diff --git a/Gemfile.lock b/Gemfile.lock
index 6fb5572..40d1371 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -53,7 +53,7 @@ GEM
       sass (~> 3.2)
     jekyll-watch (1.3.0)
       listen (~> 3.0)
-    json (1.8.3)
+    json (2.3.1)
     kramdown (1.9.0)
     launchy (2.4.3)
       addressable (~> 2.3)