diff --git a/postman-rails.gemspec b/postman-rails.gemspec
new file mode 100644
index 0000000..d0c0da3
--- /dev/null
+++ b/postman-rails.gemspec
@@ -0,0 +1,15 @@
+require File.expand_path('../lib/postman/rails/version', __FILE__)
+
+Gem::Specification.new do |s|
+  s.name          = "postman-rails"
+  s.description   = %q{Rails/ActionMailer library for the Postman email platform}
+  s.summary       = s.description
+  s.homepage      = "https://postman.prmail.vn"
+  s.version       = Postman::Rails::VERSION
+  s.files         = Dir.glob("{lib}/**/*")
+  s.require_paths = ["lib"]
+  s.authors       = ["Adam Cooke", "Nikkel"]
+  s.email         = ["me@adamcooke.io", "nikkel@prmail.vn"]
+  s.licenses      = ['MIT']
+  s.add_dependency "postman-ruby", ">= 0.0.2", "< 2.0"
+end