diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..8682ea8
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,20 @@
+PATH
+  remote: .
+  specs:
+    sightstone (1.4.5)
+      rest-client
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    mime-types (2.2)
+    rake (10.1.1)
+    rest-client (1.6.7)
+      mime-types (>= 1.16)
+
+PLATFORMS
+  x64-mingw32
+
+DEPENDENCIES
+  rake
+  sightstone!
diff --git a/Rakefile b/Rakefile
index 6ba2d0c..125f10e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -4,5 +4,6 @@ Rake::TestTask.new do |t|
   t.libs << 'test'
 end
 
-desc "Run tests"
-task :default => :test
\ No newline at end of file
+
+
+task :default #=> :test
\ No newline at end of file
diff --git a/sightstone.gemspec b/sightstone.gemspec
index 87d7e66..51ced42 100644
--- a/sightstone.gemspec
+++ b/sightstone.gemspec
@@ -9,5 +9,7 @@ Gem::Specification.new do |s|
   s.files = Dir["lib/**/*"]
   s.homepage = 'https://github.com/danijoo/Sightstone'
   s.license = 'MIT'
+
   s.add_runtime_dependency 'rest-client'
+  s.add_development_dependency 'rake'
 end