diff --git a/operate/services/manage.py b/operate/services/manage.py
index a39b3ec4..dd99749a 100644
--- a/operate/services/manage.py
+++ b/operate/services/manage.py
@@ -2205,9 +2205,7 @@ def refill_requirements(  # pylint: disable=too-many-locals,too-many-statements,
 
             agent_addresses = {key.address for key in service.keys}
             service_safe = (
-                chain_data.multisig
-                if chain_data.multisig and chain_data.multisig != NON_EXISTENT_MULTISIG
-                else "service_safe"
+                chain_data.multisig if chain_data.multisig else "service_safe"
             )
 
             if not master_safe_exists:
diff --git a/operate/services/service.py b/operate/services/service.py
index 6d88817b..a1aeb366 100644
--- a/operate/services/service.py
+++ b/operate/services/service.py
@@ -96,10 +96,10 @@
 ALL_PARTICIPANTS = "all_participants"
 CONSENSUS_THRESHOLD = "consensus_threshold"
 DELETE_PREFIX = "delete_"
-SERVICE_CONFIG_VERSION = 6
+SERVICE_CONFIG_VERSION = 7
 SERVICE_CONFIG_PREFIX = "sc-"
 
-NON_EXISTENT_MULTISIG = "0xm"
+NON_EXISTENT_MULTISIG = None
 NON_EXISTENT_TOKEN = -1
 
 DEFAULT_TRADER_ENV_VARS = {
@@ -935,25 +935,31 @@ def migrate_format(cls, path: Path) -> bool:  # pylint: disable=too-many-stateme
                 new_chain_configs[chain] = chain_data  # type: ignore
             data["chain_configs"] = new_chain_configs
 
-        data["version"] = SERVICE_CONFIG_VERSION
-
-        # Redownload service path
-        if "service_path" in data:
-            package_absolute_path = path / Path(data["service_path"]).name
-            data.pop("service_path")
-        else:
-            package_absolute_path = path / data["package_path"]
+        if version < 6:
+            # Redownload service path
+            if "service_path" in data:
+                package_absolute_path = path / Path(data["service_path"]).name
+                data.pop("service_path")
+            else:
+                package_absolute_path = path / data["package_path"]
 
-        if package_absolute_path.exists() and package_absolute_path.is_dir():
-            shutil.rmtree(package_absolute_path)
+            if package_absolute_path.exists() and package_absolute_path.is_dir():
+                shutil.rmtree(package_absolute_path)
 
-        package_absolute_path = Path(
-            IPFSTool().download(
-                hash_id=data["hash"],
-                target_dir=path,
+            package_absolute_path = Path(
+                IPFSTool().download(
+                    hash_id=data["hash"],
+                    target_dir=path,
+                )
             )
-        )
-        data["package_path"] = str(package_absolute_path.name)
+            data["package_path"] = str(package_absolute_path.name)
+
+        if version < 7:
+            for _, chain_data in data.get("chain_configs", {}).items():
+                if chain_data["chain_data"]["multisig"] == "0xm":
+                    chain_data["chain_data"]["multisig"] = NON_EXISTENT_MULTISIG
+
+        data["version"] = SERVICE_CONFIG_VERSION
 
         with open(path / Service._file, "w", encoding="utf-8") as file:
             json.dump(data, file, indent=2)
diff --git a/tests/test_services_service.py b/tests/test_services_service.py
index 0b77d08c..5cf93490 100644
--- a/tests/test_services_service.py
+++ b/tests/test_services_service.py
@@ -27,6 +27,7 @@
 from deepdiff import DeepDiff
 
 from operate.services.service import (
+    NON_EXISTENT_MULTISIG,
     SERVICE_CONFIG_PREFIX,
     SERVICE_CONFIG_VERSION,
     Service,
@@ -55,7 +56,7 @@
     "keys_address_0": "0x0000000000000000000000000000000000000001",
     "keys_private_key_0": "0x0000000000000000000000000000000000000000000000000000000000000001",
     "instance_0": "0x0000000000000000000000000000000000000001",
-    "multisig": "0x0000000000000000000000000000000000000020",
+    "multisig": "0xm",
     "service_config_id": "sc-00000000-0000-0000-0000-000000000000",
     "package_path": "trader_pearl",
 }
@@ -332,7 +333,57 @@ def get_config_json_data_v6(**kwargs: t.Any) -> t.Dict[str, t.Any]:
     }
 
 
-get_expected_data = get_config_json_data_v6
+def get_config_json_data_v7(**kwargs: t.Any) -> t.Dict[str, t.Any]:
+    """get_config_json_data_v7"""
+
+    return {
+        "version": 7,
+        "service_config_id": kwargs.get("service_config_id"),
+        "hash": kwargs.get("hash"),
+        "hash_history": {kwargs.get("hash_timestamp"): kwargs.get("hash")},
+        "keys": [
+            {
+                "ledger": "ethereum",
+                "address": kwargs.get("keys_address_0"),
+                "private_key": kwargs.get("keys_private_key_0"),
+            }
+        ],
+        "home_chain": "gnosis",
+        "chain_configs": {
+            "gnosis": {
+                "ledger_config": {"rpc": kwargs.get("rpc"), "chain": "gnosis"},
+                "chain_data": {
+                    "instances": [kwargs.get("instance_0")],
+                    "token": kwargs.get("token"),
+                    "multisig": NON_EXISTENT_MULTISIG,
+                    "staked": kwargs.get("staked"),
+                    "on_chain_state": kwargs.get("on_chain_state"),
+                    "user_params": {
+                        "staking_program_id": kwargs.get("staking_program_id"),
+                        "nft": kwargs.get("nft"),
+                        "threshold": kwargs.get("threshold"),
+                        "agent_id": kwargs.get("agent_id"),
+                        "use_staking": kwargs.get("use_staking"),
+                        "use_mech_marketplace": kwargs.get("use_mech_marketplace"),
+                        "cost_of_bond": kwargs.get("cost_of_bond"),
+                        "fund_requirements": {
+                            "0x0000000000000000000000000000000000000000": {
+                                "agent": kwargs.get("fund_requirements_agent"),
+                                "safe": kwargs.get("fund_requirements_safe"),
+                            }
+                        },
+                    },
+                },
+            }
+        },
+        "description": kwargs.get("description"),
+        "env_variables": {},
+        "package_path": kwargs.get("package_path"),
+        "name": kwargs.get("name"),
+    }
+
+
+get_expected_data = get_config_json_data_v7
 
 
 class TestService:
@@ -351,6 +402,7 @@ class TestService:
             get_config_json_data_v3,
             get_config_json_data_v4,
             get_config_json_data_v5,
+            get_config_json_data_v6,
         ],
     )
     def test_service_migrate_format(