diff --git a/nixos/roles/monitoring/probes.nix b/nixos/roles/monitoring/probes.nix
index 1d70d369..a4542bad 100644
--- a/nixos/roles/monitoring/probes.nix
+++ b/nixos/roles/monitoring/probes.nix
@@ -56,7 +56,7 @@ in
         "https://ci.maralorn.de"
         "https://cloud.maralorn.de"
         "https://element.maralorn.de"
-        "https://fdroid.maralorn.de"
+        "https://fdroid.maralorn.de/index-v1.json"
         "https://home.maralorn.de"
         "https://matrix.maralorn.de"
         "https://monitoring.maralorn.de"