diff --git a/src/@utils/ocean/index.ts b/src/@utils/ocean/index.ts
index 3bd61c3f6..8f92e29b2 100644
--- a/src/@utils/ocean/index.ts
+++ b/src/@utils/ocean/index.ts
@@ -52,7 +52,7 @@ export function getDevelopmentConfig(): Config {
     // metadataContractAddress: contractAddresses.development?.Metadata,
     // oceanTokenAddress: contractAddresses.development?.Ocean,
     // There is no subgraph in barge so we hardcode the Polygon Mumbai one for now
-    subgraphUri: 'https://v4.subgraph.mumbai.oceanprotocol.com'
+    subgraphUri: 'https://v4.subgraph.sepolia.oceanprotocol.com'
   } as Config
 }
 
diff --git a/src/@utils/wallet/index.ts b/src/@utils/wallet/index.ts
index bebc52949..12f6b74f4 100644
--- a/src/@utils/wallet/index.ts
+++ b/src/@utils/wallet/index.ts
@@ -1,12 +1,6 @@
 import { LoggerInstance } from '@oceanprotocol/lib'
 import { createClient, erc20ABI } from 'wagmi'
-import {
-  mainnet,
-  polygon,
-  optimism,
-  polygonMumbai,
-  sepolia
-} from 'wagmi/chains'
+import { mainnet, polygon, optimism, sepolia } from 'wagmi/chains'
 import { ethers, Contract, Signer } from 'ethers'
 import { formatEther } from 'ethers/lib/utils'
 import { getDefaultClient } from 'connectkit'
@@ -36,7 +30,7 @@ export const wagmiClient = createClient(
     appName: 'Ocean Market',
     infuraId: process.env.NEXT_PUBLIC_INFURA_PROJECT_ID,
     // TODO: mapping between appConfig.chainIdsSupported and wagmi chainId
-    chains: [mainnet, polygon, optimism, polygonMumbai, sepolia],
+    chains: [mainnet, polygon, optimism, sepolia],
     walletConnectProjectId: process.env.NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID
   })
 )
diff --git a/src/components/@shared/FormInput/InputElement/FilesInput/index.test.tsx b/src/components/@shared/FormInput/InputElement/FilesInput/index.test.tsx
index 89782a9d5..6e150841b 100644
--- a/src/components/@shared/FormInput/InputElement/FilesInput/index.test.tsx
+++ b/src/components/@shared/FormInput/InputElement/FilesInput/index.test.tsx
@@ -46,7 +46,7 @@ const mockFieldArwave = {
 
 const mockFieldGraphQL = {
   value:
-    'https://v4.subgraph.mumbai.oceanprotocol.com/subgraphs/name/oceanprotocol/ocean-subgraph',
+    'https://v4.subgraph.sepolia.oceanprotocol.com/subgraphs/name/oceanprotocol/ocean-subgraph',
   checked: false,
   onChange: jest.fn(),
   onBlur: jest.fn(),
@@ -201,7 +201,7 @@ describe('@shared/FormInput/InputElement/FilesInput', () => {
           {
             type: 'graphql',
             valid: true,
-            url: 'https://v4.subgraph.mumbai.oceanprotocol.com/subgraphs/name/oceanprotocol/ocean-subgraph',
+            url: 'https://v4.subgraph.sepolia.oceanprotocol.com/subgraphs/name/oceanprotocol/ocean-subgraph',
             query:
               'query{\n            nfts(orderBy: createdTimestamp,orderDirection:desc){\n                 id\n                 symbol\n                 createdTimestamp\n            }\n           }',
             checksum: false