diff --git a/app/telemetry/deploy/telemetry.hcl b/app/telemetry/deploy/telemetry.hcl
index 65f4f7c..fc0c389 100644
--- a/app/telemetry/deploy/telemetry.hcl
+++ b/app/telemetry/deploy/telemetry.hcl
@@ -102,7 +102,7 @@ EOH
     task "grafana" {
       driver = "docker"
       config {
-        image = "grafana/grafana:8.3.5"
+        image = "grafana/grafana:8.4.3"
         network_mode = "host"
         ports = [ "grafana" ]
         volumes = [
diff --git a/cluster/staging/site/neptune.nix b/cluster/staging/site/neptune.nix
index 5fed713..1b80144 100644
--- a/cluster/staging/site/neptune.nix
+++ b/cluster/staging/site/neptune.nix
@@ -13,7 +13,7 @@
     enable = true;
     systemCronJobs = [
       "0 2 * * * root nix-collect-garbage --delete-older-than 10d >> /root/nix_gc_log 2>&1"
-      "30 2 * * * root docker run --rm -v /var/lib/drone/nix:/nix nixpkgs/nix:nixos-21.05 nix-collect-garbage --delete-older-than 30d >> /root/drone_nix_gc_log 2>&1"
+      "30 2 1 * * root docker run --rm -v /var/lib/drone/nix:/nix nixpkgs/nix:nixos-21.05 nix-collect-garbage --delete-older-than 30d >> /root/drone_nix_gc_log 2>&1"
     ];
   };
 }