diff --git a/tools/Gemfile.lock b/tools/Gemfile.lock
index dcc58e60..1702fdd9 100644
--- a/tools/Gemfile.lock
+++ b/tools/Gemfile.lock
@@ -219,7 +219,7 @@ GEM
       gemoji (>= 3, < 5)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    json (2.19.2)
+    json (2.19.9)
     kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)