diff --git a/nix-system-configs/modules/system/traefik.nix b/nix-system-configs/modules/system/traefik.nix
index 5abc9a4..6d2337a 100644
--- a/nix-system-configs/modules/system/traefik.nix
+++ b/nix-system-configs/modules/system/traefik.nix
@@ -763,7 +763,7 @@ in {
       wantedBy = [ "multi-user.target" ];
       serviceConfig = {
         Type = "oneshot";
-        ExecStart = "/usr/bin/env bash /etc/cloudflare-ddns/update.sh";
+        ExecStart = "${pkgs.bash}/bin/bash /etc/cloudflare-ddns/update.sh";
         User = "traefikprg";
         # Make sure the service doesn't fail the boot if the script exits non-zero
         Restart = "no";