diff --git a/_config.yml b/_config.yml
index fcc65ca..33afbff 100644
--- a/_config.yml
+++ b/_config.yml
@@ -6,7 +6,7 @@ url: http://blog.higgsboson.tk
 title: ~/git/blog
 subtitle: hot and spicy
 author: Jörg Thalheim
-simple_search: http://www.duckduckgo.com/
+simple_search: https://www.duckduckgo.com/
 description: a tech blog
 
 # Default date format is "ordinal" (resulting in "July 22nd 2007")