diff --git a/package/src/index.ts b/package/src/index.ts
index 90d1b15..21551a1 100644
--- a/package/src/index.ts
+++ b/package/src/index.ts
@@ -1,10 +1,10 @@
-import ConfigJson from '../artifacts/contracts/Config.sol/Config.json';
-import EntitiesRegistryJson from '../artifacts/contracts/EntitiesRegistry.sol/EntitiesRegistry.json';
-import MarketJson from '../artifacts/contracts/Market.sol/Market.json';
-import ERC20PermitJson from '../artifacts/contracts/test/MockERC20Dec18Permit.sol/MockERC20Dec18Permit.json';
-import ERC20Json from '../artifacts/contracts/test/MockERC20Dec18.sol/MockERC20Dec18.json';
-import ERC20Permit6Json from '../artifacts/contracts/test/MockERC20Dec6Permit.sol/MockERC20Dec6Permit.json';
-import ERC206Json from '../artifacts/contracts/test/MockERC20Dec6.sol/MockERC20Dec6.json';
+import ConfigJson from '../artifacts/contracts/Config.sol/Config.json' assert { type: 'json' };
+import EntitiesRegistryJson from '../artifacts/contracts/EntitiesRegistry.sol/EntitiesRegistry.json' assert { type: 'json' };
+import MarketJson from '../artifacts/contracts/Market.sol/Market.json' assert { type: 'json' };
+import ERC20PermitJson from '../artifacts/contracts/test/MockERC20Dec18Permit.sol/MockERC20Dec18Permit.json' assert { type: 'json' };
+import ERC20Json from '../artifacts/contracts/test/MockERC20Dec18.sol/MockERC20Dec18.json' assert { type: 'json' };
+import ERC20Permit6Json from '../artifacts/contracts/test/MockERC20Dec6Permit.sol/MockERC20Dec6Permit.json' assert { type: 'json' };
+import ERC206Json from '../artifacts/contracts/test/MockERC20Dec6.sol/MockERC20Dec6.json' assert { type: 'json' };
 export {
   ConfigJson,
   EntitiesRegistryJson,