diff --git a/app/models/formations.py b/app/models/formations.py
index 756879d593..063bd624d4 100644
--- a/app/models/formations.py
+++ b/app/models/formations.py
@@ -11,7 +11,7 @@ class NotesFormation(db.Model):
     """Programme pédagogique d'une formation"""
 
     __tablename__ = "notes_formations"
-    __table_args__ = (db.UniqueConstraint("acronyme", "titre", "version"),)
+    __table_args__ = (db.UniqueConstraint("dept_id", "acronyme", "titre", "version"),)
 
     id = db.Column(db.Integer, primary_key=True)
     formation_id = db.synonym("id")
diff --git a/migrations/versions/f86c013c9fbd_modif_contrainte_sur_formations.py b/migrations/versions/f86c013c9fbd_modif_contrainte_sur_formations.py
new file mode 100644
index 0000000000..8d888c6836
--- /dev/null
+++ b/migrations/versions/f86c013c9fbd_modif_contrainte_sur_formations.py
@@ -0,0 +1,30 @@
+"""modif contrainte sur formations
+
+Revision ID: f86c013c9fbd
+Revises: 669065fb2d20
+Create Date: 2021-09-19 21:30:42.240422
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'f86c013c9fbd'
+down_revision = '669065fb2d20'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint('notes_formations_acronyme_titre_version_key', 'notes_formations', type_='unique')
+    op.create_unique_constraint(None, 'notes_formations', ['dept_id', 'acronyme', 'titre', 'version'])
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'notes_formations', type_='unique')
+    op.create_unique_constraint('notes_formations_acronyme_titre_version_key', 'notes_formations', ['acronyme', 'titre', 'version'])
+    # ### end Alembic commands ###