diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index ba9fb98..895a3a8 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -58,7 +58,7 @@ GEM
       sass-embedded (~> 1.54)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.19.4)
+    json (2.19.9)
     kramdown (2.5.2)
       rexml (>= 3.4.4)
     kramdown-parser-gfm (1.1.0)