diff --git a/src/cmd/cron/main.go b/src/cmd/cron/main.go
index 2ce8bc2..2bd5e50 100644
--- a/src/cmd/cron/main.go
+++ b/src/cmd/cron/main.go
@@ -50,12 +50,23 @@ func initDB(ctx context.Context) error {
 	}
 
 	mods := []string{
-		`CREATE TABLE feeds (
+		`CREATE TABLE "feed.entries" (
 			id SERIAL PRIMARY KEY NOT NULL,
 			created_at TIMESTAMP,
 			updated_at TIMESTAMP,
 			deleted_at TIMESTAMP
 		)`,
+		`CREATE TABLE "feed.specs" (
+			entries_id NUMBER,
+			FOREIGN KEY (entries_id) REFERENCES "feed.entries" (id)
+		)`,
+		`ALTER TABLE "feed.specs" ADD COLUMN url TEXT NOT NULL`,
+		`ALTER TABLE "feed.specs" ADD COLUMN cron TEXT NOT NULL DEFAULT '0 0 * * *'`,
+		`CREATE TABLE "feed.executions" (
+			entries_id NUMBER,
+			executed_at TIMESTAMP,
+			FOREIGN KEY (entries_id) REFERENCES "feed.entries" (id)
+		)`,
 	}
 	mods = append([]string{""}, mods...)
 	for i := v.V + 1; i < len(mods); i++ {