--- a/tests/src/migrations/942057-appPromotion/correctStateAfterMaintenance.ts
+++ b/tests/src/migrations/942057-appPromotion/correctStateAfterMaintenance.ts
@@ -49,6 +49,7 @@
 
     const failedBlocks: bigint[] = [];
     let isSuccess = true;
+    await helper.wait.newBlocks(1);
 
     for(const b of filteredBlocks) {
       if(((await api.query.appPromotion.pendingUnstake(b)).toJSON() as any[]).length != 0) {