diff --git a/packages/v1/administrativo/repositories/firebird/firebird_schema_repository.py b/packages/v1/administrativo/repositories/firebird/firebird_schema_repository.py
index 46adf97..ad74fb3 100644
--- a/packages/v1/administrativo/repositories/firebird/firebird_schema_repository.py
+++ b/packages/v1/administrativo/repositories/firebird/firebird_schema_repository.py
@@ -203,7 +203,13 @@ class FirebirdSchemaExtractor(BaseRepository):
             # Preenchimento de parâmetros.
             params = {
                 'json_data': json_data  # Deve ser None/0 para INSERT
-            }            
+            }
+
+            # Primeiro exlui os dados antigos
+            sql = """DELETE FROM firebird_schema"""
+
+            # Execução do SQL.
+            self.run(sql)
 
             # Inserção simples
             sql = """INSERT INTO firebird_schema (structure) VALUES (:json_data) """