diff --git a/Gemfile b/Gemfile
index a17a4244..4a84781d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,5 +10,5 @@ gem "rdoc", "~>3.6"
 gem "org-ruby", "= 0.9.9"
 gem "creole", "~>0.3.6"
 gem "wikicloth", "=0.8.3"
-gem "asciidoctor", "= 1.5.5"
+gem "asciidoctor", "= 1.5.6.1"
 gem "rake"