diff --git a/Gemfile b/Gemfile
index 3be9c3cd812e6cb2d9d029ec79a88bf4662aa68b..43563e9473483611d9f5d950797b9f41f92f05cd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,4 @@
 source "https://rubygems.org"
 gemspec
+
+gem "webrick", "~> 1.7"