diff --git a/Gemfile.lock b/Gemfile.lock
index 3b2d0a3..393d19c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
       sass-embedded (~> 1.54)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.9.0)
+    json (2.9.1)
     kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)