diff --git a/actionpack/actionpack.gemspec b/actionpack/actionpack.gemspec
index 15d104fd82..1766a9322d 100644
--- a/actionpack/actionpack.gemspec
+++ b/actionpack/actionpack.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.add_dependency('rack-cache',       '~> 1.0.2')
   s.add_dependency('builder',          '~> 3.0.0')
   s.add_dependency('i18n',             '~> 0.6')
-  s.add_dependency('rack',             '~> 1.3.1')
+  s.add_dependency('rack',             '~> 1.3.2')
   s.add_dependency('rack-test',        '~> 0.6.0')
   s.add_dependency('rack-mount',       '~> 0.8.1')
   s.add_dependency('sprockets',        '= 2.0.0.beta.10')