1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index 0bcfab7b79..e5b9345a0c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,7 +29,7 @@ group :doc do
   gem 'sdoc', '~> 0.4.0'
   gem 'redcarpet', '~> 3.2.2', platforms: :ruby
   gem 'w3c_validators'
-  gem 'kindlerb'
+  gem 'kindlerb', '0.1.1'
 end
 
 # AS