diff --git a/src/app/db/schema/tasks/tasks.ts b/src/app/db/schema/tasks/tasks.ts
index ae9738b..bcd457e 100644
--- a/src/app/db/schema/tasks/tasks.ts
+++ b/src/app/db/schema/tasks/tasks.ts
@@ -1,8 +1,15 @@
-import { pgTable, uuid, text, timestamp } from "drizzle-orm/pg-core";
+import { pgTable, uuid, text, timestamp, bigint } from "drizzle-orm/pg-core";
+import { portfolio } from "../portfolio";
 
 export const tasks = pgTable("tasks", {
   id: uuid("id").defaultRandom().primaryKey(),
 
+  // ✅ Optional bigint foreign key
+  portfolioId: bigint("portfolio_id", { mode: "number" })
+    .references(() => portfolio.id, {
+      onDelete: "set null",
+    }),
+
   taskSource: text("task_source").notNull(),
 
   jobStarted: timestamp("job_started", { precision: 6, withTimezone: true }),