diff --git a/assets/javascripts/templates/pages/about_tmpl.coffee b/assets/javascripts/templates/pages/about_tmpl.coffee
index e2ada049..f0cc4c5d 100644
--- a/assets/javascripts/templates/pages/about_tmpl.coffee
+++ b/assets/javascripts/templates/pages/about_tmpl.coffee
@@ -448,7 +448,7 @@ credits = [
     'https://raw.githubusercontent.com/lodash/lodash/master/LICENSE'
   ], [
     'Lua',
-    '1994–2017 Lua.org, PUC-Rio',
+    '1994–2020 Lua.org, PUC-Rio',
     'MIT',
     'http://www.lua.org/license.html'
   ], [
diff --git a/lib/docs/scrapers/lua.rb b/lib/docs/scrapers/lua.rb
index e3608918..5192548a 100644
--- a/lib/docs/scrapers/lua.rb
+++ b/lib/docs/scrapers/lua.rb
@@ -8,12 +8,17 @@ module Docs
     options[:skip_links] = true
 
     options[:attribution] = <<-HTML
-      &copy; 1994&ndash;2017 Lua.org, PUC-Rio.<br>
+      &copy; 1994&ndash;2020 Lua.org, PUC-Rio.<br>
       Licensed under the MIT License.
     HTML
 
+    version '5.4' do
+      self.release = '5.4.1'
+      self.base_url = 'https://www.lua.org/manual/5.4/'
+    end
+
     version '5.3' do
-      self.release = '5.3.4'
+      self.release = '5.3.6'
       self.base_url = 'https://www.lua.org/manual/5.3/'
     end