diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..7398a90
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+require 'bundler/gem_tasks'
diff --git a/digest-keccak.gemspec b/digest-keccak.gemspec
index 648e1e2..5b1181b 100644
--- a/digest-keccak.gemspec
+++ b/digest-keccak.gemspec
@@ -45,4 +45,5 @@ Gem::Specification.new do |spec|
   spec.extensions << 'ext/digest/extconf.rb'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
+  spec.add_development_dependency 'rake',    '~> 10.0'
 end