diff --git a/Gemfile b/Gemfile
index cf0485bc..4b3a1565 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,4 +2,4 @@ source 'https://rubygems.org'
 gem 'github-pages'
 gem 'html-proofer'
 gem 'mdl'
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"
diff --git a/Gemfile.lock b/Gemfile.lock
index ed721345..b00f4949 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -314,7 +314,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.8.0)
     uri (0.13.1)
-    webrick (1.8.2)
+    webrick (1.9.0)
     yell (2.2.2)
     zeitwerk (2.6.15)
 
@@ -325,7 +325,7 @@ DEPENDENCIES
   github-pages
   html-proofer
   mdl
-  webrick (~> 1.8)
+  webrick (~> 1.9)
 
 BUNDLED WITH
    2.4.5