diff --git a/tools/tag_obsolete_os.py b/tools/tag_obsolete_os.py
index 58f29f7..0401ec1 100644
--- a/tools/tag_obsolete_os.py
+++ b/tools/tag_obsolete_os.py
@@ -69,6 +69,14 @@ def main():
     print(f"[INFO] DB: {DATABASE_URL.split('@')[-1]}")
     conn = engine.connect().execution_options(isolation_level="AUTOCOMMIT")
 
+    # Etend le CHECK constraint pour accepter 'obsolete' (le reste du code l'utilise)
+    print("[INFO] Etend CHECK licence_support (active/obsolete/eol/els/missing)...")
+    conn.execute(text("ALTER TABLE servers DROP CONSTRAINT IF EXISTS servers_licence_support_check"))
+    conn.execute(text(
+        "ALTER TABLE servers ADD CONSTRAINT servers_licence_support_check "
+        "CHECK (licence_support IN ('active', 'obsolete', 'eol', 'els', 'missing') OR licence_support IS NULL)"
+    ))
+
     rows = conn.execute(text("""
         SELECT id, hostname, os_version, licence_support
         FROM servers