diff --git a/docs/conf.py b/docs/conf.py
index 2f81985..0dc99d2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -270,4 +270,4 @@
     googleanalytics_id = os.environ['GOOGLE_ANALYTICS']
     googleanalytics_enabled = True
 
-redmine_project_url = "http://redmine.named-data.net/"
+redmine_project_url = "https://redmine.named-data.net/"