diff --git a/app/models/rails_release.rb b/app/models/rails_release.rb
index 63e8b55..2512338 100644
--- a/app/models/rails_release.rb
+++ b/app/models/rails_release.rb
@@ -41,7 +41,7 @@ def compatible_ruby_version
 
   def compatible_bundler_version
     if version
-      Gem::Version.new(version < Gem::Version.new("5") ? "1.17.3" : Bundler::VERSION)
+      Gem::Version.new(version < Gem::Version.new("5") ? "1.17.3" : "2.1.4")
     end
   end
 end