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-rw-r--r--dtas.gemspec1
1 files changed, 1 insertions, 0 deletions
diff --git a/dtas.gemspec b/dtas.gemspec
index 2c2febc..aa8e435 100644
--- a/dtas.gemspec
+++ b/dtas.gemspec
@@ -12,4 +12,5 @@ Gem::Specification.new do |s|
   s.files = manifest
   s.homepage = 'http://dtas.80x24.org/'
   s.licenses = "GPL-3.0+"
+  s.required_ruby_version = '>= 1.9.3'
 end