diff --git a/Gemfile.lock b/Gemfile.lock
index f8c6a1d..cfbaf45 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,23 +2,23 @@ PATH
   remote: .
   specs:
     github_changelog_generator (1.13.0)
-      colorize (~> 0.7)
-      github_api (~> 0.12)
+      colorize (>= 0.7)
+      github_api (>= 0.12)
       rake (>= 10.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     addressable (2.4.0)
-    ast (2.2.0)
+    ast (2.3.0)
     childprocess (0.5.9)
       ffi (~> 1.0, >= 1.0.11)
-    codeclimate-test-reporter (0.5.0)
+    codeclimate-test-reporter (0.6.0)
       simplecov (>= 0.7.1, < 1.0.0)
-    colorize (0.7.7)
-    coveralls (0.8.13)
-      json (~> 1.8)
-      simplecov (~> 0.11.0)
+    colorize (0.8.1)
+    coveralls (0.8.14)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.12.0)
       term-ansicolor (~> 1.3)
       thor (~> 0.19.1)
       tins (~> 1.6.0)
@@ -28,59 +28,58 @@ GEM
     docile (1.1.5)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.10)
-    github_api (0.13.1)
+    ffi (1.9.14)
+    github_api (0.14.4)
       addressable (~> 2.4.0)
       descendants_tracker (~> 0.0.4)
       faraday (~> 0.8, < 0.10)
       hashie (>= 3.4)
-      multi_json (>= 1.7.5, < 2.0)
-      oauth2
+      oauth2 (~> 1.0.0)
     hashie (3.4.4)
     iniparse (1.4.2)
-    json (1.8.3)
-    jwt (1.5.1)
-    multi_json (1.12.0)
+    json (2.0.1)
+    jwt (1.5.4)
+    multi_json (1.12.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
-    oauth2 (1.1.0)
+    oauth2 (1.0.0)
       faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0, < 1.5.2)
+      jwt (~> 1.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (>= 1.2, < 3)
-    overcommit (0.33.0)
+      rack (~> 1.2)
+    overcommit (0.34.2)
       childprocess (~> 0.5.8)
       iniparse (~> 1.4)
-    parser (2.3.1.0)
+    parser (2.3.1.2)
       ast (~> 2.2)
     powerpack (0.1.1)
     rack (1.6.4)
     rainbow (2.1.0)
-    rake (11.1.2)
-    rspec (3.4.0)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-    rspec-core (3.4.4)
-      rspec-support (~> 3.4.0)
-    rspec-expectations (3.4.0)
+    rake (11.2.2)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.1)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-mocks (3.4.1)
+      rspec-support (~> 3.5.0)
+    rspec-mocks (3.5.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-support (3.4.1)
-    rubocop (0.39.0)
-      parser (>= 2.3.0.7, < 3.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+    rubocop (0.41.2)
+      parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    ruby-progressbar (1.8.0)
-    simplecov (0.11.2)
+    ruby-progressbar (1.8.1)
+    simplecov (0.12.0)
       docile (~> 1.1.0)
-      json (~> 1.8)
+      json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.0)
     term-ansicolor (1.3.2)
@@ -88,7 +87,7 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.5)
     tins (1.6.0)
-    unicode-display_width (1.0.5)
+    unicode-display_width (1.1.0)
 
 PLATFORMS
   ruby
diff --git a/github_changelog_generator.gemspec b/github_changelog_generator.gemspec
index afa79b7..178cb73 100644
--- a/github_changelog_generator.gemspec
+++ b/github_changelog_generator.gemspec
@@ -24,11 +24,11 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "rake", ">= 10.0"
-  spec.add_runtime_dependency("github_api", ["~> 0.12"])
-  spec.add_runtime_dependency("colorize", ["~> 0.7"])
+  spec.add_runtime_dependency "github_api", ">= 0.12"
+  spec.add_runtime_dependency "colorize", ">= 0.7"
 
-  spec.add_development_dependency("overcommit", ">= 0.31")
-  spec.add_development_dependency("rspec", ">= 3.2")
+  spec.add_development_dependency "overcommit", ">= 0.31"
+  spec.add_development_dependency "rspec", ">= 3.2"
   spec.add_development_dependency "bundler", ">= 1.7"
-  spec.add_development_dependency("rubocop", ">= 0.31")
+  spec.add_development_dependency "rubocop", ">= 0.31"
 end
diff --git a/spec/unit/parse_file_spec.rb b/spec/unit/parse_file_spec.rb
index 832904a..ad26aee 100644
--- a/spec/unit/parse_file_spec.rb
+++ b/spec/unit/parse_file_spec.rb
@@ -48,7 +48,7 @@ describe GitHubChangelogGenerator::ParserFile do
                                           header: "=== Changelog ==="))
       end
 
-      context "turns exclude-labels into an Array", bug: '#327' do
+      context "turns exclude-labels into an Array", bug: "#327" do
         let(:file) do
           StringIO.new(<<EOF
 exclude-labels=73a91042-da6f-11e5-9335-1040f38d7f90,7adf83b4-da6f-11e5-ae18-1040f38d7f90