diff --git a/Gemfile.lock b/Gemfile.lock
index 3a32767..6b818c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -219,7 +219,7 @@ GEM
     ruby-enum (0.7.2)
       i18n
     ruby_dep (1.5.0)
-    rubyzip (1.2.2)
+    rubyzip (2.0.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -242,7 +242,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  commonmarker
   github-pages
 
 BUNDLED WITH