diff --git a/modules/nixos/services/monitoring/default.nix b/modules/nixos/services/monitoring/default.nix
index 829bfe0..c7489f4 100644
--- a/modules/nixos/services/monitoring/default.nix
+++ b/modules/nixos/services/monitoring/default.nix
@@ -131,5 +131,10 @@ in
         inherit (cfg.grafana) port;
       }
     ];
+
+    my.system.persist.directories = [
+      config.services.grafana.dataDir
+      "/var/lib/${config.services.prometheus.stateDir}"
+    ];
   };
 }