diff --git a/src/pretix/control/views/geo.py b/src/pretix/control/views/geo.py
index f3bb201a22..debbc78578 100644
--- a/src/pretix/control/views/geo.py
+++ b/src/pretix/control/views/geo.py
@@ -71,7 +71,7 @@ class GeoCodeView(LoginRequiredMixin, View):
 
         try:
             r = requests.get(
-                'http://www.mapquestapi.com/geocoding/v1/address?location={}&key={}'.format(
+                'https://www.mapquestapi.com/geocoding/v1/address?location={}&key={}'.format(
                     quote(q), gs.settings.mapquest_apikey
                 )
             )