From b0efb92bfdc940eee1d7c62181925386b2bdd245 Mon Sep 17 00:00:00 2001
From: Dan Allen <dan.j.allen@gmail.com>
Date: Tue, 29 Jul 2014 13:42:34 -0600
Subject: add thread_safe as dep

---
 asciidoctor-pdf.gemspec | 1 +
 1 file changed, 1 insertion(+)

diff --git a/asciidoctor-pdf.gemspec b/asciidoctor-pdf.gemspec
index b3485c38..f0f9a9da 100644
--- a/asciidoctor-pdf.gemspec
+++ b/asciidoctor-pdf.gemspec
@@ -42,6 +42,7 @@ An extension for Asciidoctor that converts AsciiDoc documents to PDF files using
   s.add_runtime_dependency 'prawn-templates', '0.0.3'
   s.add_runtime_dependency 'prawn-svg', '0.16.0'
   s.add_runtime_dependency 'slim', '~> 2.0.0'
+  s.add_runtime_dependency 'thread_safe', '0.3.4'
   s.add_runtime_dependency 'tilt', '~> 2.0.0'
   s.add_runtime_dependency 'treetop', '1.5.3'
 end
-- 
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