diff --git a/.travis.yml b/.travis.yml
index 47d86c2..dc59461 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,4 +13,6 @@ before_install:
 notifications:
   email: false
 
+before_script: git pull -q --depth=1000000
+
 script: bundle exec rspec spec
diff --git a/Gemfile b/Gemfile
index 30b3b2e..98eb9cc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 gemspec
 
-gem "charlock_holmes", "0.6.9.1"
+gem "charlock_holmes"
 
 group :test do
   gem "simplecov"
diff --git a/git_statistics.gemspec b/git_statistics.gemspec
index e48db50..33dcff6 100644
--- a/git_statistics.gemspec
+++ b/git_statistics.gemspec
@@ -17,8 +17,8 @@ Gem::Specification.new do |gem|
   gem.required_ruby_version = '>= 1.9.1'
 
   gem.add_dependency('json')
-  gem.add_dependency('grit', '2.5.0')
-  gem.add_dependency('github-linguist', '2.4.0')
+  gem.add_dependency('grit')
+  gem.add_dependency('github-linguist')
 
   gem.add_development_dependency "rspec", "~> 2.12.0"
   gem.add_development_dependency "rake"