Rakefile in rmagick-5.5.0 vs Rakefile in rmagick-6.0.0

@@ -69,10 +69,10 @@
   def replace_reversion(lines)
     now = Time.new
     now = now.strftime('%m/%d/%y')
 
     lines.each do |line|
-      line.gsub!(/0\.0\.0/, Magick::VERSION)
+      line.gsub!("0.0.0", Magick::VERSION)
       line.gsub!(%r{YY/MM/DD}, now)
     end
     lines
   end