Rakefile in kramdown-service-0.3.0 vs Rakefile in kramdown-service-1.0.0

@@ -10,23 +10,23 @@
 
   self.urls    = ['https://github.com/writekit/kramdown-service']
 
   self.author  = 'Gerald Bauer'
   self.email   = '[e-mail]'
-  
+
   self.extra_deps = [
-    ['kramdown'],  ##  markdown converter
+    ['kramdown', '>=1.17.0'],  ##  markdown converter
     ['rouge'],     ## syntax highlighter
-    ['sinatra'],
+    ['sinatra', '>=2.0.4'],
   ]
-  
+
   # switch extension to .markdown for gihub formatting
   self.readme_file  = 'README.md'
   self.history_file = 'HISTORY.md'
 
   self.licenses = ['Public Domain']
 
   self.spec_extras = {
-   required_ruby_version: '>= 1.9.2'
+   required_ruby_version: '>= 2.2.2'
   }
 
 end