diff --git a/Gemfile.lock b/Gemfile.lock
index fe80d20..b9d44be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,19 @@
+PATH
+  remote: .
+  specs:
+    timecost (0.0.1)
+
 GEM
   remote: https://rubygems.org/
   specs:
+    minitest (4.7.5)
+    rake (10.1.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  bundler (~> 1.6)
+  minitest (~> 4.7.5)
+  rake (~> 10.0)
+  timecost!
diff --git a/timecost.gemspec b/timecost.gemspec
index a053c91..a0803f0 100644
--- a/timecost.gemspec
+++ b/timecost.gemspec
@@ -8,9 +8,9 @@ Gem::Specification.new do |spec|
   spec.version       = Timecost::VERSION
   spec.authors       = ["Glenn Y. Rolland"]
   spec.email         = ["glenux@glenux.net"]
-  spec.summary       = %q{TODO: Write a short summary. Required.}
-  spec.description   = %q{TODO: Write a longer description. Optional.}
-  spec.homepage      = ""
+  spec.summary       = %q{Use GIT logs to give an estimation of spent time & costs of your projects.}
+  spec.description   = %q{Use GIT logs to give an estimation of spent time & costs of your projects.}
+  spec.homepage      = "https//github.com/glenux/git-timecost"
   spec.license       = "MIT"
 
   spec.files         = `git ls-files -z`.split("\x0")
@@ -20,4 +20,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", "~> 1.6"
   spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "minitest", "~> 4.7.5"
 end