diff --git a/activerecord/activerecord.gemspec b/activerecord/activerecord.gemspec
index 89a62f0873..3e3475f709 100644
--- a/activerecord/activerecord.gemspec
+++ b/activerecord/activerecord.gemspec
@@ -24,6 +24,6 @@ Gem::Specification.new do |s|
   s.add_dependency 'activesupport', version
   s.add_dependency 'activemodel',   version
 
-  s.add_dependency 'arel',                            '~> 4.0.0.beta1'
+  s.add_dependency 'arel',                            '~> 4.0.0.beta2'
   s.add_dependency 'activerecord-deprecated_finders', '~> 0.0.3'
 end