diff --git a/.gitignore b/.gitignore
index 1063635d..e4bf1377 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ example/public/docs
 *.swp
 /html/
 /.idea
+Gemfile.lock
diff --git a/Gemfile b/Gemfile
index 04bc0b1a..d65e2a66 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,3 @@
 source 'http://rubygems.org'
 
 gemspec
-
-gem 'inch'
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 6e8db2a9..00000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,160 +0,0 @@
-PATH
-  remote: .
-  specs:
-    rspec_api_documentation (6.1.0)
-      activesupport (>= 3.0.0)
-      mustache (~> 1.0, >= 0.99.4)
-      rspec (~> 3.0)
-
-GEM
-  remote: http://rubygems.org/
-  specs:
-    activesupport (4.2.5.1)
-      i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
-      minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
-      tzinfo (~> 1.1)
-    addressable (2.4.0)
-    aruba (0.13.0)
-      childprocess (~> 0.5.6)
-      contracts (~> 0.9)
-      cucumber (>= 1.3.19)
-      ffi (~> 1.9.10)
-      rspec-expectations (>= 2.99)
-      thor (~> 0.19)
-    attr_required (1.0.1)
-    builder (3.2.2)
-    capybara (2.6.2)
-      addressable
-      mime-types (>= 1.16)
-      nokogiri (>= 1.3.3)
-      rack (>= 1.0.0)
-      rack-test (>= 0.5.4)
-      xpath (~> 2.0)
-    childprocess (0.5.9)
-      ffi (~> 1.0, >= 1.0.11)
-    coderay (1.1.2)
-    contracts (0.13.0)
-    crack (0.4.3)
-      safe_yaml (~> 1.0.0)
-    cucumber (2.3.2)
-      builder (>= 2.1.2)
-      cucumber-core (~> 1.4.0)
-      cucumber-wire (~> 0.0.1)
-      diff-lcs (>= 1.1.3)
-      gherkin (~> 3.2.0)
-      multi_json (>= 1.7.5, < 2.0)
-      multi_test (>= 0.1.2)
-    cucumber-core (1.4.0)
-      gherkin (~> 3.2.0)
-    cucumber-wire (0.0.1)
-    daemons (1.2.3)
-    diff-lcs (1.2.5)
-    eventmachine (1.0.9.1)
-    fakefs (0.6.0)
-    faraday (0.9.2)
-      multipart-post (>= 1.2, < 3)
-    ffi (1.9.10)
-    gherkin (3.2.0)
-    hashdiff (0.2.3)
-    httpclient (2.7.1)
-    i18n (0.7.0)
-    inch (0.8.0)
-      pry
-      sparkr (>= 0.2.0)
-      term-ansicolor
-      yard (~> 0.9.12)
-    json (1.8.6)
-    method_source (0.9.0)
-    mime-types (3.0)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2015.1120)
-    mini_portile2 (2.3.0)
-    minitest (5.8.4)
-    multi_json (1.11.2)
-    multi_test (0.1.2)
-    multipart-post (2.0.0)
-    mustache (1.0.5)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
-    pry (0.11.3)
-      coderay (~> 1.1.0)
-      method_source (~> 0.9.0)
-    rack (1.6.4)
-    rack-oauth2 (1.2.2)
-      activesupport (>= 2.3)
-      attr_required (>= 0.0.5)
-      httpclient (>= 2.4)
-      multi_json (>= 1.3.6)
-      rack (>= 1.1)
-    rack-protection (1.5.3)
-      rack
-    rack-test (0.6.3)
-      rack (>= 1.0)
-    rake (10.5.0)
-    rspec (3.4.0)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-    rspec-core (3.4.2)
-      rspec-support (~> 3.4.0)
-    rspec-expectations (3.4.0)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-its (1.2.0)
-      rspec-core (>= 3.0.0)
-      rspec-expectations (>= 3.0.0)
-    rspec-mocks (3.4.1)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-support (3.4.1)
-    safe_yaml (1.0.4)
-    sinatra (1.4.7)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
-    sparkr (0.4.1)
-    term-ansicolor (1.6.0)
-      tins (~> 1.0)
-    thin (1.6.4)
-      daemons (~> 1.0, >= 1.0.9)
-      eventmachine (~> 1.0, >= 1.0.4)
-      rack (~> 1.0)
-    thor (0.19.1)
-    thread_safe (0.3.5)
-    tilt (2.0.2)
-    tins (1.16.3)
-    tzinfo (1.2.2)
-      thread_safe (~> 0.1)
-    webmock (1.22.6)
-      addressable (>= 2.3.6)
-      crack (>= 0.3.2)
-      hashdiff
-    xpath (2.0.0)
-      nokogiri (~> 1.3)
-    yard (0.9.15)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  aruba (~> 0.5)
-  bundler (~> 1.0)
-  capybara (~> 2.2)
-  fakefs (~> 0.4)
-  faraday (~> 0.9, >= 0.9.0)
-  inch
-  nokogiri (~> 1.8, >= 1.8.2)
-  rack-oauth2 (~> 1.2.2, >= 1.0.7)
-  rack-test (~> 0.6.2)
-  rake (~> 10.1)
-  rspec-its (~> 1.0)
-  rspec_api_documentation!
-  sinatra (~> 1.4, >= 1.4.4)
-  thin (~> 1.6, >= 1.6.3)
-  webmock (~> 1.7)
-  yard (>= 0.9.11)
-
-BUNDLED WITH
-   1.16.4
diff --git a/rspec_api_documentation.gemspec b/rspec_api_documentation.gemspec
index 9590586a..f1a67b33 100644
--- a/rspec_api_documentation.gemspec
+++ b/rspec_api_documentation.gemspec
@@ -18,20 +18,26 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency "activesupport", ">= 3.0.0"
   s.add_runtime_dependency "mustache", "~> 1.0", ">= 0.99.4"
 
-  s.add_development_dependency "bundler", "~> 1.0"
-  s.add_development_dependency "fakefs", "~> 0.4"
-  s.add_development_dependency "sinatra", "~> 1.4", ">= 1.4.4"
-  s.add_development_dependency "aruba", "~> 0.5"
-  s.add_development_dependency "capybara", "~> 2.2"
-  s.add_development_dependency "rake", "~> 10.1"
-  s.add_development_dependency "rack-test", "~> 0.6.2"
-  s.add_development_dependency "rack-oauth2", "~> 1.2.2", ">= 1.0.7"
-  s.add_development_dependency "webmock", "~> 1.7"
-  s.add_development_dependency "rspec-its", "~> 1.0"
-  s.add_development_dependency "faraday", "~> 0.9", ">= 0.9.0"
-  s.add_development_dependency "thin", "~> 1.6", ">= 1.6.3"
-  s.add_development_dependency "nokogiri", "~> 1.8", ">= 1.8.2"
-  s.add_development_dependency "yard", ">= 0.9.11"
+  s.add_development_dependency "bundler", ">= 1.16"
+  s.add_development_dependency "fakefs", "~> 0.6.0"
+  s.add_development_dependency "sinatra", "~> 1.4.7"
+  s.add_development_dependency "aruba", "~> 0.13.0"
+  s.add_development_dependency "capybara", "~> 2.6.2"
+  s.add_development_dependency "rake", "~> 10.5.0"
+  s.add_development_dependency "rack-test", "~> 0.6.3"
+  s.add_development_dependency "rack-oauth2", "~> 1.2.2"
+  s.add_development_dependency "webmock", "~> 1.22.6"
+  s.add_development_dependency "rspec-its", "~> 1.2.0"
+  s.add_development_dependency "faraday", "~> 0.9.2"
+  s.add_development_dependency "thin", "~> 1.6.4"
+  s.add_development_dependency "nokogiri", "~> 1.8.4"
+  s.add_development_dependency "yard", "~> 0.9.15"
+  s.add_development_dependency "inch", "~> 0.8.0"
+  s.add_development_dependency "minitest", "~> 5.8.4"
+  s.add_development_dependency "contracts", "~> 0.13.0"
+  s.add_development_dependency "gherkin", "~> 3.2.0"
+  s.add_development_dependency "multi_json", "~> 1.11.2"
+  s.add_development_dependency "rspec", "~> 3.4.0"
 
   s.files        = Dir.glob("lib/**/*") + Dir.glob("templates/**/*")
   s.require_path = "lib"