diff --git a/app/entreprises/models.py b/app/entreprises/models.py
index b168a94f..5795d76d 100644
--- a/app/entreprises/models.py
+++ b/app/entreprises/models.py
@@ -4,7 +4,8 @@ from app import db
 class Entreprise(db.Model):
     __tablename__ = "are_entreprises"
     id = db.Column(db.Integer, primary_key=True)
-    siret = db.Column(db.Text)
+    siret = db.Column(db.Text, index=True)
+    siret_provisoire = db.Column(db.Boolean, default=False)
     nom = db.Column(db.Text)
     adresse = db.Column(db.Text)
     codepostal = db.Column(db.Text)
diff --git a/migrations/versions/ec4f4f4ae9db_suppression_colonne_are_correspondants.py b/migrations/versions/bd358f412282_suppression_colonne_are_correspondants_.py
similarity index 63%
rename from migrations/versions/ec4f4f4ae9db_suppression_colonne_are_correspondants.py
rename to migrations/versions/bd358f412282_suppression_colonne_are_correspondants_.py
index a092ab52..ee3d6f82 100644
--- a/migrations/versions/ec4f4f4ae9db_suppression_colonne_are_correspondants.py
+++ b/migrations/versions/bd358f412282_suppression_colonne_are_correspondants_.py
@@ -1,8 +1,8 @@
-"""suppression colonne are_correspondants
+"""suppression colonne are_correspondants, ajout siret provisoire
 
-Revision ID: ec4f4f4ae9db
+Revision ID: bd358f412282
 Revises: 0b337376e9f7
-Create Date: 2022-07-11 17:56:19.608275
+Create Date: 2022-07-12 09:24:59.328369
 
 """
 from alembic import op
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = 'ec4f4f4ae9db'
+revision = 'bd358f412282'
 down_revision = '0b337376e9f7'
 branch_labels = None
 depends_on = None
@@ -20,11 +20,15 @@ def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     op.drop_constraint('are_correspondants_entreprise_id_fkey', 'are_correspondants', type_='foreignkey')
     op.drop_column('are_correspondants', 'entreprise_id')
+    op.add_column('are_entreprises', sa.Column('siret_provisoire', sa.Boolean(), nullable=True))
+    op.create_index(op.f('ix_are_entreprises_siret'), 'are_entreprises', ['siret'], unique=False)
     # ### end Alembic commands ###
 
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_are_entreprises_siret'), table_name='are_entreprises')
+    op.drop_column('are_entreprises', 'siret_provisoire')
     op.add_column('are_correspondants', sa.Column('entreprise_id', sa.INTEGER(), autoincrement=False, nullable=True))
     op.create_foreign_key('are_correspondants_entreprise_id_fkey', 'are_correspondants', 'are_entreprises', ['entreprise_id'], ['id'], ondelete='CASCADE')
     # ### end Alembic commands ###