diff --git a/site.conf b/site.conf
index 8e9aadb..01e8059 100644
--- a/site.conf
+++ b/site.conf
@@ -104,8 +104,11 @@
           'http://[fdef:ffc0:4fff::130]/welcome/experimental/sysupgrade/',
         },
         probability = 0.5,
-        good_signatures = 1,
+        good_signatures = 2,
         pubkeys = {
+          '2a74ed02120a7d48bb2dc9be988b3480ed99844054b3d7f3e5d3df27d19d814b', -- ole
+          '7e3bd782e40189b903b3fb1e488d64b23aa04bc353b1a521b4cd50e70b299113', -- fpletz
+          '56c4201f6ce2994678b0142e19099dd28d6ed17775d35ca9a7f12d9235890ffc', -- chris
           '2f92051ac4452d6026061e6c3719ffbd4f34ba7fbc474439fc6f857b76159bae', -- build.freifunk-muenchen.de (fpletz)
         },
       },