diff --git a/backend/internal/repository/migrations_runner.go b/backend/internal/repository/migrations_runner.go
index 155dfaa11a..285326537d 100644
--- a/backend/internal/repository/migrations_runner.go
+++ b/backend/internal/repository/migrations_runner.go
@@ -53,7 +53,7 @@ const migrationsLockRetryInterval = 500 * time.Millisecond
 const nonTransactionalMigrationSuffix = "_notx.sql"
 const paymentOrdersOutTradeNoUniqueMigration = "120_enforce_payment_orders_out_trade_no_unique_notx.sql"
 const paymentOrdersOutTradeNoUniqueIndex = "paymentorder_out_trade_no_unique"
-const schedulerOutboxPendingDedupKeyMigration = "152_scheduler_outbox_pending_dedup_key_index_notx.sql"
+const schedulerOutboxPendingDedupKeyMigration = "153_scheduler_outbox_pending_dedup_key_index_notx.sql"
 const schedulerOutboxPendingDedupKeyIndex = "idx_scheduler_outbox_pending_dedup_key"
 
 type migrationChecksumCompatibilityRule struct {
diff --git a/backend/internal/repository/migrations_runner_notx_test.go b/backend/internal/repository/migrations_runner_notx_test.go
index f5453c4bd0..c9f6a2cdf1 100644
--- a/backend/internal/repository/migrations_runner_notx_test.go
+++ b/backend/internal/repository/migrations_runner_notx_test.go
@@ -201,7 +201,7 @@ func TestApplyMigrationsFS_SchedulerOutboxPendingDedupKeyMigration_DropsInvalidI
 
 	prepareMigrationsBootstrapExpectations(mock)
 	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
-		WithArgs("152_scheduler_outbox_pending_dedup_key_index_notx.sql").
+		WithArgs("153_scheduler_outbox_pending_dedup_key_index_notx.sql").
 		WillReturnError(sql.ErrNoRows)
 	mock.ExpectQuery("SELECT EXISTS \\(").
 		WithArgs("idx_scheduler_outbox_pending_dedup_key").
@@ -211,14 +211,14 @@ func TestApplyMigrationsFS_SchedulerOutboxPendingDedupKeyMigration_DropsInvalidI
 	mock.ExpectExec("CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS idx_scheduler_outbox_pending_dedup_key").
 		WillReturnResult(sqlmock.NewResult(0, 0))
 	mock.ExpectExec("INSERT INTO schema_migrations \\(filename, checksum\\) VALUES \\(\\$1, \\$2\\)").
-		WithArgs("152_scheduler_outbox_pending_dedup_key_index_notx.sql", sqlmock.AnyArg()).
+		WithArgs("153_scheduler_outbox_pending_dedup_key_index_notx.sql", sqlmock.AnyArg()).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
 		WithArgs(migrationsAdvisoryLockID).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 
 	fsys := fstest.MapFS{
-		"152_scheduler_outbox_pending_dedup_key_index_notx.sql": &fstest.MapFile{
+		"153_scheduler_outbox_pending_dedup_key_index_notx.sql": &fstest.MapFile{
 			Data: []byte(`
 CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS idx_scheduler_outbox_pending_dedup_key
     ON scheduler_outbox (dedup_key)
diff --git a/backend/migrations/151_scheduler_outbox_dedup_key.sql b/backend/migrations/152_scheduler_outbox_dedup_key.sql
similarity index 100%
rename from backend/migrations/151_scheduler_outbox_dedup_key.sql
rename to backend/migrations/152_scheduler_outbox_dedup_key.sql
diff --git a/backend/migrations/152_scheduler_outbox_pending_dedup_key_index_notx.sql b/backend/migrations/153_scheduler_outbox_pending_dedup_key_index_notx.sql
similarity index 100%
rename from backend/migrations/152_scheduler_outbox_pending_dedup_key_index_notx.sql
rename to backend/migrations/153_scheduler_outbox_pending_dedup_key_index_notx.sql