diff --git a/docs/Gemfile b/docs/Gemfile
index 2722493..f5e1bd5 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 gem 'jekyll'
 gem "jekyll-theme-hacker", "~> 0.2.0"
 gem "github-pages", "~> 232"
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"
 gem "kramdown-parser-gfm", "~> 1.1"
 
 group :jekyll_plugins do
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index d76fb21..a28c2ed 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -294,7 +294,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
     uri (0.13.0)
-    webrick (1.8.2)
+    webrick (1.9.0)
 
 PLATFORMS
   aarch64-linux
@@ -321,7 +321,7 @@ DEPENDENCIES
   jekyll-remote-include!
   jekyll-theme-hacker (~> 0.2.0)
   kramdown-parser-gfm (~> 1.1)
-  webrick (~> 1.8)
+  webrick (~> 1.9)
 
 BUNDLED WITH
    2.5.11