diff --git a/impressum.md b/impressum.md
index 34bdf53..da502a0 100644
--- a/impressum.md
+++ b/impressum.md
@@ -12,8 +12,8 @@ Email: {{ site.author.email }}
 
 ## Domains
 
-* [blog.kempkens.io](http://blog.kempkens.io)
-* [daniel.xxx](http://daniel.xxx)
+* [blog.kempkens.io](https://blog.kempkens.io)
+* [daniel.xxx](https://daniel.xxx)
 
 ## Security