diff --git a/gemfiles/Gemfile.rails4.1 b/gemfiles/Gemfile.rails4.1
index d20f0941a154595224dc0bd37c3ff6708d5cf5da..5e50059378ea637b73f40bc7974ab50a69ba236f 100644
--- a/gemfiles/Gemfile.rails4.1
+++ b/gemfiles/Gemfile.rails4.1
@@ -9,7 +9,7 @@ group :development, :test do
   gem 'rails', '~> 4.1.13'
   gem 'test-unit' # needed for Ruby >=2.2.0
 
-  gem 'byebug', platforms: :mri
+  gem 'byebug', '9.0.6', platforms: :mri
 
   platforms :jruby do
     gem 'jruby-openssl'