Fix timestamp field to use (UTC) timezone

migrations/versions/ba6df7e560a1_modify_email_timestamp.py

@@ -0,0 +1,24 @@
+"""modify email timestamp
+
+Revision ID: ba6df7e560a1
+Revises: 6d8ceb1c18cb
+Create Date: 2021-10-13 10:54:23.894034
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'ba6df7e560a1'
+down_revision = '6d8ceb1c18cb'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.execute("alter table email alter column timestamp type timestamp with time zone")
+
+
+def downgrade():
+    op.execute("alter table email alter column timestamp type timestamp without time zone")