diff --git a/db/postgresql/migrations/02_prisma_4_upgrade/migration.sql b/db/postgresql/migrations/02_prisma_4_upgrade/migration.sql
index d52a495f..b5a5767e 100644
--- a/db/postgresql/migrations/02_prisma_4_upgrade/migration.sql
+++ b/db/postgresql/migrations/02_prisma_4_upgrade/migration.sql
@@ -1,3 +1,39 @@
+-- DropForeignKey
+ALTER TABLE "event" DROP CONSTRAINT "event_session_id_fkey";
+
+-- DropForeignKey
+ALTER TABLE "event" DROP CONSTRAINT "event_website_id_fkey";
+
+-- DropForeignKey
+ALTER TABLE "pageview" DROP CONSTRAINT "pageview_session_id_fkey";
+
+-- DropForeignKey
+ALTER TABLE "pageview" DROP CONSTRAINT "pageview_website_id_fkey";
+
+-- DropForeignKey
+ALTER TABLE "session" DROP CONSTRAINT "session_website_id_fkey";
+
+-- DropForeignKey
+ALTER TABLE "website" DROP CONSTRAINT "website_user_id_fkey";
+
+-- AddForeignKey
+ALTER TABLE "event" ADD CONSTRAINT "event_session_id_fkey" FOREIGN KEY ("session_id") REFERENCES "session"("session_id") ON DELETE CASCADE ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE "event" ADD CONSTRAINT "event_website_id_fkey" FOREIGN KEY ("website_id") REFERENCES "website"("website_id") ON DELETE CASCADE ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE "pageview" ADD CONSTRAINT "pageview_session_id_fkey" FOREIGN KEY ("session_id") REFERENCES "session"("session_id") ON DELETE CASCADE ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE "pageview" ADD CONSTRAINT "pageview_website_id_fkey" FOREIGN KEY ("website_id") REFERENCES "website"("website_id") ON DELETE CASCADE ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE "session" ADD CONSTRAINT "session_website_id_fkey" FOREIGN KEY ("website_id") REFERENCES "website"("website_id") ON DELETE CASCADE ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE "website" ADD CONSTRAINT "website_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "account"("user_id") ON DELETE NO ACTION ON UPDATE NO ACTION;
+
 -- RenameIndex
 ALTER INDEX "account.username_unique" RENAME TO "account_username_key";