diff --git a/Gemfile b/Gemfile
index 2a70bd8..27ae05c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,3 +3,5 @@ gem "jekyll", "~> 3.8"
 gem "jekyll-theme-console"
 gem "sassc", "~> 2.1.0"
 gem "kramdown-parser-gfm"
+
+gem "webrick", "~> 1.8"
diff --git a/Gemfile.lock b/Gemfile.lock
index 18179a7..7c95797 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,6 +61,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     sassc (2.1.0)
       ffi (~> 1.9)
+    webrick (1.8.1)
 
 PLATFORMS
   ruby
@@ -70,6 +71,7 @@ DEPENDENCIES
   jekyll-theme-console
   kramdown-parser-gfm
   sassc (~> 2.1.0)
+  webrick (~> 1.8)
 
 BUNDLED WITH
    2.1.4