diff --git a/docs/development/index.rst b/docs/development/index.rst
index f9bc9eea8..81befe431 100644
--- a/docs/development/index.rst
+++ b/docs/development/index.rst
@@ -17,4 +17,4 @@ bug check out `what to put in your bug report`_.
     c-bindings
 
 .. _`GitHub`: https://github.com/pyca/cryptography
-.. _`what to put in your bug report`: http://www.contribution-guide.org/#what-to-put-in-your-bug-report
+.. _`what to put in your bug report`: https://www.contribution-guide.org/#what-to-put-in-your-bug-report