diff --git a/nixos/modules/services/monitoring/librenms.nix b/nixos/modules/services/monitoring/librenms.nix
index ef3593cf038c..3d8d3dbd8296 100644
--- a/nixos/modules/services/monitoring/librenms.nix
+++ b/nixos/modules/services/monitoring/librenms.nix
@@ -668,6 +668,9 @@ in
           ${artisanWrapper}/bin/librenms-artisan optimize
           echo "${package}" > ${cfg.dataDir}/package
         fi
+
+        # to make sure to not read an outdated .env file
+        ${artisanWrapper}/bin/librenms-artisan config:cache
       '';
     };