Fix migrations

2 files changed, 7 insertions, 9 deletions

diff --git a/packages/migrations/src/utils/constants.ts b/packages/migrations/src/utils/constants.ts
index 21887ab16..068122e28 100644
--- a/packages/migrations/src/utils/constants.ts
+++ b/packages/migrations/src/utils/constants.ts
@@ -12,4 +12,5 @@ export const constants = {
     ERC721_PROXY_ID: '0x08e937fa',
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
     RPC_URL: 'http://localhost:8545',
+    KOVAN_NETWORK_ID: 42,
 };
diff --git a/packages/migrations/src/utils/provider_factory.ts b/packages/migrations/src/utils/provider_factory.ts
index 14b1be982..6ae2ad41c 100644
--- a/packages/migrations/src/utils/provider_factory.ts
+++ b/packages/migrations/src/utils/provider_factory.ts
@@ -1,5 +1,4 @@
 import { LedgerSubprovider } from '@0xproject/subproviders';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import Eth from '@ledgerhq/hw-app-eth';
 import TransportNodeHid from '@ledgerhq/hw-transport-node-hid';
 import { Provider } from 'ethereum-types';
@@ -18,19 +17,17 @@ async function ledgerEthereumNodeJsClientFactoryAsync(): Promise<LedgerEthereumC
 export const providerFactory = {
     async getLedgerProviderAsync(): Promise<Provider> {
         const provider = new ProviderEngine();
-        provider.addProvider(
-            new RpcSubprovider({
-                rpcUrl: constants.RPC_URL,
-            }),
-        );
-        const web3Wrapper = new Web3Wrapper(provider);
-        const networkId = await web3Wrapper.getNetworkIdAsync();
         const ledgerWalletConfigs = {
-            networkId,
+            networkId: constants.KOVAN_NETWORK_ID,
             ledgerEthereumClientFactoryAsync: ledgerEthereumNodeJsClientFactoryAsync,
         };
         const ledgerSubprovider = new LedgerSubprovider(ledgerWalletConfigs);
         provider.addProvider(ledgerSubprovider);
+        provider.addProvider(
+            new RpcSubprovider({
+                rpcUrl: constants.RPC_URL,
+            }),
+        );
         provider.start();
         return provider;
     },