diff --git a/packages/db/DittoDatabase.ts b/packages/db/DittoDatabase.ts
index e43356a0..ebe97cec 100644
--- a/packages/db/DittoDatabase.ts
+++ b/packages/db/DittoDatabase.ts
@@ -2,7 +2,7 @@ import type { Kysely } from 'kysely';
 
 import type { DittoTables } from './DittoTables.ts';
 
-export interface DittoDatabase {
+export interface DittoDatabase extends AsyncDisposable {
   readonly kysely: Kysely<DittoTables>;
   readonly poolSize: number;
   readonly availableConnections: number;
diff --git a/packages/db/adapters/DittoPglite.ts b/packages/db/adapters/DittoPglite.ts
index 2e7ca3fc..5e7e6ca4 100644
--- a/packages/db/adapters/DittoPglite.ts
+++ b/packages/db/adapters/DittoPglite.ts
@@ -36,6 +36,10 @@ export class DittoPglite {
       poolSize: 1,
       availableConnections: 1,
       listen,
+      [Symbol.asyncDispose]: async () => {
+        await pglite.close();
+        await kysely.destroy();
+      },
     };
   }
 }
diff --git a/packages/db/adapters/DittoPostgres.ts b/packages/db/adapters/DittoPostgres.ts
index 9ab8156f..d1b0db6c 100644
--- a/packages/db/adapters/DittoPostgres.ts
+++ b/packages/db/adapters/DittoPostgres.ts
@@ -54,6 +54,7 @@ export class DittoPostgres {
         return pg.connections.idle;
       },
       listen,
+      [Symbol.asyncDispose]: () => kysely.destroy(),
     };
   }
 }