diff --git a/docs/Gemfile b/docs/Gemfile
index fa9d65ef5d..a9a4c0ce7c 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
-gem 'github-pages', '>= 229', group: :jekyll_plugins
-gem "webrick"
+gem 'github-pages', '>= 232', group: :jekyll_plugins
+gem "webrick", ">= 1.8.2"