Rakefile in slideshow-models-4.0.1 vs Rakefile in slideshow-models-4.1.0

@@ -12,20 +12,21 @@
 
   self.author  = 'Gerald Bauer'
   self.email   = '[e-mail]'
 
   self.extra_deps = [
-    ['props',     '>= 1.2.0'],
-    ['logutils',  '>= 0.6.1'],
-    ['kramdown',  '>= 1.15.0'],
-    ['textutils', '>= 1.4.0'],
-    ['pakman',    '>= 1.0.0'],
+    ['props',               '>= 1.2.0'],
+    ['logutils',            '>= 0.6.1'],
+    ['kramdown',            '>= 2.1.0'],
+    ['kramdown-parser-gfm', '>= 1.0.1'],
+    ['textutils',           '>= 1.4.0'],
+    ['pakman',              '>= 1.1.0'],
     ['activesupport'],
   ]
 
   # switch extension to .markdown for gihub formatting
   self.readme_file  = 'README.md'
-  self.history_file = 'HISTORY.md'
+  self.history_file = 'CHANGELOG.md'
 
   self.licenses = ['Public Domain']
 
   self.spec_extras = {
     required_ruby_version: '>= 2.3'