diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index a520567cf1f..ec38af4ffb3 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -39,7 +39,7 @@ GEM
       sass (~> 3.2)
     jekyll-watch (1.1.0)
       listen (~> 2.7)
-    json (1.8.1)
+    json (2.3.0)
     kramdown (1.4.1)
     liquid (2.6.1)
     listen (2.7.9)