diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 7637837ff..8497d4f60 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -22,7 +22,7 @@ name: nightly
 
 on:
   schedule:
-    - cron: "0 */4 * * *"
+    - cron: "0 4 * * *"
 
 jobs:
   license:
diff --git a/covalent_migrations/versions/de0a6c0a3e3d_add_qelectron_data_exists_flag_to_db.py b/covalent_migrations/versions/de0a6c0a3e3d_add_qelectron_data_exists_flag_to_db.py
index 10b1b356e..f9f53d1eb 100644
--- a/covalent_migrations/versions/de0a6c0a3e3d_add_qelectron_data_exists_flag_to_db.py
+++ b/covalent_migrations/versions/de0a6c0a3e3d_add_qelectron_data_exists_flag_to_db.py
@@ -43,7 +43,9 @@ def upgrade() -> None:
         batch_op.create_foreign_key("electron_link", "electrons", ["parent_electron_id"], ["id"])
 
     with op.batch_alter_table("electrons", schema=None) as batch_op:
-        batch_op.add_column(sa.Column("qelectron_data_exists", sa.Boolean(), nullable=False))
+        batch_op.add_column(
+            sa.Column("qelectron_data_exists", sa.Boolean(), nullable=False, default=False)
+        )
 
     # ### end Alembic commands ###