diff --git a/Gemfile b/Gemfile
index e44e449..a3c5a03 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,4 @@
 source 'https://rubygems.org'
 gem "github-pages", group: :jekyll_plugins
+# https://github.com/github/pages-gem/issues/752
+gem "webrick", "~> 1.8"
diff --git a/Gemfile.lock b/Gemfile.lock
index a5a088b..b8be894 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -247,12 +247,14 @@ GEM
       unf_ext
     unf_ext (0.0.8.2)
     unicode-display_width (1.8.0)
+    webrick (1.8.1)
 
 PLATFORMS
   x86_64-darwin-22
 
 DEPENDENCIES
   github-pages
+  webrick (~> 1.8)
 
 BUNDLED WITH
    2.4.10