diff --git a/docs/Gemfile b/docs/Gemfile
index 3e24f04d7a..eb14c4eeb7 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -2,3 +2,4 @@ source 'https://rubygems.org'
 
 gem 'jekyll'
 gem 'github-pages'
+gem "webrick"
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 570a6cbc21..f448ecc9b6 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -212,7 +212,7 @@ GEM
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.17.0)
-    nokogiri (1.13.10)
+    nokogiri (1.14.0)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     octokit (4.25.1)
@@ -251,6 +251,7 @@ GEM
       unf_ext
     unf_ext (0.0.8.2)
     unicode-display_width (1.8.0)
+    webrick (1.7.0)
     zeitwerk (2.6.6)
 
 PLATFORMS
@@ -259,6 +260,7 @@ PLATFORMS
 DEPENDENCIES
   github-pages
   jekyll
+  webrick
 
 BUNDLED WITH
    2.1.4