diff --git a/jekyll-theme-hydejack.gemspec b/jekyll-theme-hydejack.gemspec
new file mode 100644
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+++ b/jekyll-theme-hydejack.gemspec
@@ -0,0 +1,21 @@
+# coding: utf-8
+
+Gem::Specification.new do |spec|
+  spec.name          = "jekyll-theme-hydejack"
+  spec.version       = "7.5.2"
+  spec.authors       = ["Florian Klampfer"]
+  spec.email         = ["mail@qwtel.com"]
+
+  spec.summary       = %q{A Jekyll theme with JavaScript powers. "Best theme by a mile". Combines the best of static sites and web apps.}
+  spec.homepage      = "https://qwtel.com/hydejack/"
+  spec.license       = "GPL-3.0"
+
+  spec.files         = `git ls-files -z`.split("\x0").select { |f| f.match(%r{^(assets|_layouts|_includes|_sass|LICENSE|README)}i) }
+
+  spec.required_ruby_version = "~> 2.1"
+
+  spec.add_runtime_dependency "jekyll", "~> 3.6"
+
+  spec.add_development_dependency "bundler", "~> 1.12"
+  spec.add_development_dependency "rake", "~> 10.0"
+end