diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6624b43b6..2309bb1f6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,2 +1,2 @@
 The guidelines for contributing are available here:
-http://doc.scrapy.org/en/latest/contributing.html
+http://doc.scrapy.org/en/master/contributing.html
diff --git a/docs/contributing.rst b/docs/contributing.rst
index d7a47a746..f8d965df8 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -4,6 +4,11 @@
 Contributing to Scrapy
 ======================
 
+.. important::
+
+    Double check you are reading the most recent version of this document at
+    http://doc.scrapy.org/en/master/contributing.html
+
 There are many ways to contribute to Scrapy. Here are some of them:
 
 * Blog about Scrapy. Tell the world how you're using Scrapy. This will help