diff --git a/edc-controlplane/README.md b/edc-controlplane/README.md
index f715f983d..ae4584ce5 100644
--- a/edc-controlplane/README.md
+++ b/edc-controlplane/README.md
@@ -544,4 +544,4 @@ The DataManagement API can also initiate a contract negotiation using the actual
 https://github.com/eclipse-dataspaceconnector/DataSpaceConnector/issues/1265
 
 **Solution**
-Delete non-transformable ContractDefinition or Policy.
\ No newline at end of file
+Delete non-transformable ContractDefinition or Policy.
diff --git a/edc-extensions/postgresql-migration/src/main/resources/net/catenax/edc/postgresql/migration/contractnegotiation/V0_0_2__Alter_ContractNegotation_Contract_Agreement_Id_Schema.sql b/edc-extensions/postgresql-migration/src/main/resources/net/catenax/edc/postgresql/migration/contractnegotiation/V0_0_2__Alter_ContractNegotation_Contract_Agreement_Id_Schema.sql
new file mode 100644
index 000000000..966653f2c
--- /dev/null
+++ b/edc-extensions/postgresql-migration/src/main/resources/net/catenax/edc/postgresql/migration/contractnegotiation/V0_0_2__Alter_ContractNegotation_Contract_Agreement_Id_Schema.sql
@@ -0,0 +1,16 @@
+--
+--  Copyright (c) 2022 Mercedes-Benz Tech Innovation GmbH
+--
+--  This program and the accompanying materials are made available under the
+--  terms of the Apache License, Version 2.0 which is available at
+--  https://www.apache.org/licenses/LICENSE-2.0
+--
+--  SPDX-License-Identifier: Apache-2.0
+--
+--  Contributors:
+--       Mercedes-Benz Tech Innovation GmbH -  contract agreement id column rename, negotiation correlation id nullable
+--
+
+-- RENAME id column and make correlation_id nullable
+ALTER TABLE IF EXISTS edc_contract_agreement RENAME COLUMN id to agreement_id;
+ALTER TABLE IF EXISTS edc_contract_negotiation ALTER COLUMN correlation_id DROP NOT NULL;