diff --git a/tcms/testplans/migrations/0005_squashed.py b/tcms/testplans/migrations/0005_squashed.py
index 2849d41f8b..6770c9f223 100644
--- a/tcms/testplans/migrations/0005_squashed.py
+++ b/tcms/testplans/migrations/0005_squashed.py
@@ -207,10 +207,6 @@ class Migration(migrations.Migration):
                 on_delete=models.deletion.CASCADE, to="testplans.PlanType"
             ),
         ),
-        migrations.AlterIndexTogether(
-            name="testplan",
-            index_together={("product", "plan_id")},
-        ),
         migrations.RunPython(forwards_add_initial_data, reverse_add_initial_data),
         migrations.CreateModel(
             name="HistoricalTestPlan",
diff --git a/tcms/testplans/migrations/0008_remove_autofield.py b/tcms/testplans/migrations/0008_remove_autofield.py
index 7236665f85..39825647b6 100644
--- a/tcms/testplans/migrations/0008_remove_autofield.py
+++ b/tcms/testplans/migrations/0008_remove_autofield.py
@@ -32,10 +32,6 @@ class Migration(migrations.Migration):
             field=models.BooleanField(db_index=True, default=True),
         ),
         # drop TestPlan.plan_id in favor of TestPlan.id
-        migrations.AlterIndexTogether(
-            name="testplan",
-            index_together=set(),
-        ),
         migrations.RenameField(
             model_name="testplan",
             old_name="plan_id",