diff --git a/README.md b/README.md
index 3e244e6..76b4f83 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-![Promo](http://missionday.berlin/md-promo.png)
+![Promo](https://missionday.berlin/md-promo.jpg)
 # Missionday Landingpage #
 a simple Missionday Landingpage based on www.missionday.berlin