diff --git a/thinreports.gemspec b/thinreports.gemspec
index 14dbc6f5..3c9de626 100644
--- a/thinreports.gemspec
+++ b/thinreports.gemspec
@@ -23,9 +23,9 @@ Gem::Specification.new do |s|
   s.require_paths = ['lib']
 
   s.add_dependency 'prawn', '>= 2.4.0'
-  s.add_dependency 'matrix', '~> 0.4'
   s.add_dependency 'prawn-disable_word_break', '>= 2.3.1'
-  s.add_dependency 'rexml'
   s.add_dependency 'base64'
   s.add_dependency 'bigdecimal'
+  s.add_dependency 'matrix'
+  s.add_dependency 'rexml'
 end