diff --git a/lib/docs/scrapers/d3.rb b/lib/docs/scrapers/d3.rb
index d548cb0b..1b7ddf8b 100644
--- a/lib/docs/scrapers/d3.rb
+++ b/lib/docs/scrapers/d3.rb
@@ -16,7 +16,7 @@ module Docs
     HTML
 
     version '4' do
-      self.release = '4.8.0'
+      self.release = '4.9.1'
       self.base_url = 'https://github.com/d3/'
       self.root_path = 'd3/blob/master/API.md'