diff --git a/Gemfile b/Gemfile
index 7a42359..db09656 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 gem 'github-pages', group: :jekyll_plugins
 
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"
diff --git a/Gemfile.lock b/Gemfile.lock
index 9837bf3..9e9abd0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -259,7 +259,7 @@ GEM
     unf_ext (0.0.8.2-x64-mingw32)
     unf_ext (0.0.8.2-x86-mingw32)
     unicode-display_width (1.8.0)
-    webrick (1.8.1)
+    webrick (1.9.1)
 
 PLATFORMS
   ruby
@@ -269,7 +269,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
-  webrick (~> 1.8)
+  webrick (~> 1.9)
 
 BUNDLED WITH
    2.5.18