git-version-bump.gemspec in git-version-bump-0.17.0 vs git-version-bump.gemspec in git-version-bump-0.17.1

@@ -7,10 +7,10 @@
 
 	s.version = GVB.version
 	s.date    = GVB.date
 
 	s.platform              = Gem::Platform::RUBY
-	s.required_ruby_version = ">= 1.8.7"
+	s.required_ruby_version = ">= 2.1.0"
 
 	s.homepage = "http://theshed.hezmatt.org/git-version-bump"
 	s.summary = "Manage your app version entirely via git tags"
 	s.authors = ["Matt Palmer"]