diff --git a/site.conf b/site.conf
index ac48554..41fa690 100644
--- a/site.conf
+++ b/site.conf
@@ -81,9 +81,7 @@
       stable = {
         name = 'stable',
         mirrors = {
-          'http://[fdef:ffc0:4fff::11]/firmware/stable/sysupgrade/',
-          'http://[fdef:ffc0:4fff::12]/firmware/stable/sysupgrade/',
-          'http://[fdef:ffc0:4fff::13]/firmware/stable/sysupgrade/',
+          'http://firmware.ffmuc.net/stable/sysupgrade/',
           'http://[fdef:ffc0:4fff::130]/firmware/stable/sysupgrade/',
         },
         probability = 0.08,
@@ -97,6 +95,7 @@
       experimental = {
         name = 'experimental',
         mirrors = {
+          'http://firmware.ffmuc.net/experimental/sysupgrade/',
           'http://[fdef:ffc0:4fff::130]/firmware/experimental/sysupgrade/',
         },
         probability = 0.1,