diff --git a/database/migrations/versions/121eab3835ee_.py b/database/migrations/versions/9882522aafa9_.py
similarity index 51%
rename from database/migrations/versions/121eab3835ee_.py
rename to database/migrations/versions/9882522aafa9_.py
index 84d5414..9daae5c 100644
--- a/database/migrations/versions/121eab3835ee_.py
+++ b/database/migrations/versions/9882522aafa9_.py
@@ -1,8 +1,8 @@
 """empty message
 
-Revision ID: 121eab3835ee
+Revision ID: 9882522aafa9
 Revises: e5ef5e4a807b
-Create Date: 2020-07-17 08:03:36.947158
+Create Date: 2020-07-25 09:34:07.987380
 
 """
 from alembic import op
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = '121eab3835ee'
+revision = '9882522aafa9'
 down_revision = 'e5ef5e4a807b'
 branch_labels = None
 depends_on = None
@@ -18,11 +18,13 @@ depends_on = None
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('device', sa.Column('lastConnection', sa.BigInteger(), nullable=True))
+    op.add_column('calendar', sa.Column('calendar_type', sa.String(length=32), nullable=True))
+    op.create_index(op.f('ix_calendar_calendar_type'), 'calendar', ['calendar_type'], unique=False)
     # ### end Alembic commands ###
 
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('device', 'lastConnection')
+    op.drop_index(op.f('ix_calendar_calendar_type'), table_name='calendar')
+    op.drop_column('calendar', 'calendar_type')
     # ### end Alembic commands ###