diff --git a/src/lib/classes/lsp7-digital-asset.spec.ts b/src/lib/classes/lsp7-digital-asset.spec.ts
index 43ab0953..55781f97 100644
--- a/src/lib/classes/lsp7-digital-asset.spec.ts
+++ b/src/lib/classes/lsp7-digital-asset.spec.ts
@@ -1,3 +1,4 @@
+import { SUPPORTED_HASH_FUNCTION_HASHES } from '@erc725/erc725.js/build/main/src/constants/constants';
 import { ERC725YDataKeys } from '@lukso/lsp-smart-contracts';
 import { SignerWithAddress } from '@nomiclabs/hardhat-ethers/signers';
 import { providers } from 'ethers';
@@ -11,7 +12,6 @@ import {
 } from '../../../build/main/src/index';
 import { testDeployWithSpecifiedCreators } from '../../../test/digital-asset.utils';
 import { lsp4DigitalAsset } from '../../../test/lsp4-digital-asset.mock';
-import { JSONURL_KNOWN_HASH_FUNCTIONS } from '../helpers/config.helper';
 
 import { ProxyDeployer } from './proxy-deployer';
 
@@ -232,7 +232,7 @@ describe('LSP7DigitalAsset', () => {
 
         const data = await digitalAsset.getData(ERC725YDataKeys.LSP4.LSP4Metadata);
 
-        expect(data.startsWith(JSONURL_KNOWN_HASH_FUNCTIONS['keccak256(utf8)'])).toBe(true);
+        expect(data.startsWith(SUPPORTED_HASH_FUNCTION_HASHES.HASH_KECCAK256_UTF8)).toBe(true);
         expect(data).toEqual(expectedLSP4Value);
       });
       it('should have correct name and symbol set', async () => {
diff --git a/src/lib/classes/lsp8-identifiable-digital-asset.spec.ts b/src/lib/classes/lsp8-identifiable-digital-asset.spec.ts
index e597b49c..7528ad89 100644
--- a/src/lib/classes/lsp8-identifiable-digital-asset.spec.ts
+++ b/src/lib/classes/lsp8-identifiable-digital-asset.spec.ts
@@ -1,3 +1,4 @@
+import { SUPPORTED_HASH_FUNCTION_HASHES } from '@erc725/erc725.js/build/main/src/constants/constants';
 import { ERC725YDataKeys, LSP8_TOKEN_ID_TYPES } from '@lukso/lsp-smart-contracts';
 import { SignerWithAddress } from '@nomiclabs/hardhat-ethers/signers';
 import { providers } from 'ethers';
@@ -12,7 +13,6 @@ import {
 } from '../../../build/main/src/index';
 import { testDeployWithSpecifiedCreators } from '../../../test/digital-asset.utils';
 import { lsp4DigitalAsset } from '../../../test/lsp4-digital-asset.mock';
-import { JSONURL_KNOWN_HASH_FUNCTIONS } from '../helpers/config.helper';
 
 import { ProxyDeployer } from './proxy-deployer';
 
@@ -295,7 +295,7 @@ describe('LSP8IdentifiableDigitalAsset', () => {
 
         const data = await digitalAsset.getData(ERC725YDataKeys.LSP4.LSP4Metadata);
 
-        expect(data.startsWith(JSONURL_KNOWN_HASH_FUNCTIONS['keccak256(utf8)'])).toBe(true);
+        expect(data.startsWith(SUPPORTED_HASH_FUNCTION_HASHES.HASH_KECCAK256_UTF8)).toBe(true);
         expect(data).toEqual(expectedLSP4Value);
       });
 
diff --git a/src/lib/classes/universal-profile.spec.ts b/src/lib/classes/universal-profile.spec.ts
index 01728d9c..6d7125e3 100644
--- a/src/lib/classes/universal-profile.spec.ts
+++ b/src/lib/classes/universal-profile.spec.ts
@@ -1,4 +1,5 @@
 import { ERC725 } from '@erc725/erc725.js';
+import { SUPPORTED_HASH_FUNCTION_HASHES } from '@erc725/erc725.js/build/main/src/constants/constants';
 import { ALL_PERMISSIONS, ERC725YDataKeys } from '@lukso/lsp-smart-contracts';
 import KeyManagerContract from '@lukso/lsp-smart-contracts/artifacts/LSP6KeyManager.json';
 import UniversalProfileContract from '@lukso/lsp-smart-contracts/artifacts/UniversalProfile.json';
@@ -19,7 +20,6 @@ import {
   testUPDeployment,
 } from '../../../test/test.utils';
 import { UniversalProfile } from '../../../types/ethers-v5';
-import { JSONURL_KNOWN_HASH_FUNCTIONS } from '../helpers/config.helper';
 import { getDeployedByteCode } from '../helpers/deployment.helper';
 import { ContractNames, DeployedUniversalProfileContracts, DeploymentEvent } from '../interfaces';
 
@@ -67,7 +67,9 @@ describe('UniversalProfile', () => {
 
           const lsp3Data = await universalProfile.getData(ERC725YDataKeys.LSP3.LSP3Profile);
 
-          expect(lsp3Data.startsWith(JSONURL_KNOWN_HASH_FUNCTIONS['keccak256(utf8)'])).toBe(true);
+          expect(lsp3Data.startsWith(SUPPORTED_HASH_FUNCTION_HASHES.HASH_KECCAK256_UTF8)).toBe(
+            true
+          );
           expect(lsp3Data).toEqual(expectedLSP3Value);
         });
       });
diff --git a/src/lib/helpers/config.helper.ts b/src/lib/helpers/config.helper.ts
index 2f7b98c6..8eb90b54 100644
--- a/src/lib/helpers/config.helper.ts
+++ b/src/lib/helpers/config.helper.ts
@@ -15,10 +15,5 @@ export const defaultUploadOptions: UploadOptions = {
 
 export const DEFAULT_CONTRACT_VERSION = lspSmartContractsVersion;
 
-// TODO: add this constant inside the `@lukso/lsp-smart-contracts` package
-export const JSONURL_KNOWN_HASH_FUNCTIONS = {
-  'keccak256(utf8)': '0x6f357c6a',
-};
-
 export const GAS_PRICE = 10_000_000_000;
 export const GAS_BUFFER = 100_000;