diff --git a/Gemfile b/Gemfile
index 525a441..d2b75a7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,3 +3,4 @@ source 'https://rubygems.org'
 gem 'rest-client'
 gem 'nokogiri'
 gem 'logger'
+gem 'slop'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7509a89..53e8eb6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,6 +17,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
+    slop (4.6.1)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.2)
@@ -28,6 +29,7 @@ DEPENDENCIES
   logger
   nokogiri
   rest-client
+  slop
 
 BUNDLED WITH
    1.13.6