diff --git a/middleman.gemspec b/middleman.gemspec
index 8aeb8968..eadc93dd 100644
--- a/middleman.gemspec
+++ b/middleman.gemspec
@@ -31,7 +31,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("sass", ["~> 3.1.5", '< 3.1.6'])
   s.add_runtime_dependency("compass", ["~> 0.11.3"])
   s.add_runtime_dependency("coffee-script", ["~> 2.2.0"])
-  s.add_runtime_dependency("sprockets", ["2.0.0.beta.12"])
+  s.add_runtime_dependency("sprockets", ["2.0.0.beta.13"])
   s.add_runtime_dependency("httparty", ["~> 0.7.8"])
   s.add_runtime_dependency("guard", ["~> 0.5.1"])
   s.add_runtime_dependency("guard-livereload", ["~> 0.2.1"])