diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 9bc6f7f..c2bd120 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -7,9 +7,9 @@
 .. _maintainers: https://github.com/OfflineIMAP/offlineimap/blob/next/MAINTAINERS.rst
 .. _mailing list: http://lists.alioth.debian.org/mailman/listinfo/offlineimap-project
 .. _Developer's Certificate of Origin: https://github.com/OfflineIMAP/offlineimap/blob/next/docs/doc-src/dco.rst
-.. _Community's website: https://offlineimap.org
+.. _Community's website: http://offlineimap.org
 .. _APIs in OfflineIMAP: http://offlineimap.org/documentation.html#available-apis
-.. _documentation: https://offlineimap.org/documentation.html
+.. _documentation: http://offlineimap.org/documentation.html
 .. _Coding Guidelines: http://offlineimap.org/doc/CodingGuidelines.html
 .. _Know the status of your patches: http://offlineimap.org/doc/GitAdvanced.html#know-the-status-of-your-patch-after-submission