diff --git a/git-commit-notifier.gemspec b/git-commit-notifier.gemspec
index 2b264d2..c8fa36d 100644
--- a/git-commit-notifier.gemspec
+++ b/git-commit-notifier.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency(%q<diff-lcs>, ["~> 1.1.2"])
   s.add_runtime_dependency(%q<nntp>, ["~> 1.0"])
-  s.add_runtime_dependency(%q<premailer>, ["~> 1.7", "!= 1.7.2"])
+  s.add_runtime_dependency(%q<premailer>, ["~> 1.7", ">= 1.7.1", "!= 1.7.2"])
   s.add_runtime_dependency(%q<nokogiri>, ["~> 1.4"])
   s.add_development_dependency(%q<rake>, ["~> 0.8", "!= 0.9.0"])
   s.add_development_dependency(%q<bundler>, ["~> 1.0", ">=1.0.10"])