nokogiri (security change)

Author: cdagnino

Gemfile.lock

@@ -54,7 +54,7 @@ GEM
       typhoeus (~> 0.7)
     html-pipeline (2.4.2)
       activesupport (>= 2)
-      nokogiri (>= 1.4)
+      nokogiri (~> 1.8.1)
     i18n (0.7.0)
     jekyll (3.2.1)
       colorator (~> 1.0)