diff --git a/packages/sdk/package.json b/packages/sdk/package.json
index d1d566024..ae52d531d 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@arbitrum/sdk",
-  "version": "4.0.4",
+  "version": "4.0.5-alpha.0",
   "description": "Typescript library client-side interactions with Arbitrum",
   "author": "Offchain Labs, Inc.",
   "license": "Apache-2.0",
diff --git a/packages/sdk/src/lib/assetBridger/erc20Bridger.ts b/packages/sdk/src/lib/assetBridger/erc20Bridger.ts
index 12bb9db51..64fa348db 100644
--- a/packages/sdk/src/lib/assetBridger/erc20Bridger.ts
+++ b/packages/sdk/src/lib/assetBridger/erc20Bridger.ts
@@ -144,6 +144,7 @@ export interface Erc20WithdrawParams extends EthWithdrawParams {
 export type ParentToChildTxReqAndSignerProvider =
   ParentToChildTransactionRequest & {
     parentSigner: Signer
+    parentProvider?: Provider
     childProvider: Provider
     overrides?: Overrides
   }
@@ -780,9 +781,9 @@ export class Erc20Bridger extends AssetBridger<
       )
     }
 
-    const parentProvider = SignerProviderUtils.getProviderOrThrow(
-      params.parentSigner
-    )
+    const parentProvider =
+      params.parentProvider ??
+      SignerProviderUtils.getProviderOrThrow(params.parentSigner)
 
     const erc20ParentAddress = isParentToChildTransactionRequest(params)
       ? getErc20ParentAddressFromParentToChildTxRequest(params)
diff --git a/packages/sdk/src/lib/assetBridger/ethBridger.ts b/packages/sdk/src/lib/assetBridger/ethBridger.ts
index f6f037c5a..ea424919d 100644
--- a/packages/sdk/src/lib/assetBridger/ethBridger.ts
+++ b/packages/sdk/src/lib/assetBridger/ethBridger.ts
@@ -105,9 +105,13 @@ export interface EthWithdrawParams {
 
 export type EthDepositParams = {
   /**
-   * Parent network provider or signer
+   * Parent network signer
    */
   parentSigner: Signer
+  /**
+   * Parent network provider, otherwise `parentSigner.provider` will be used
+   */
+  parentProvider?: Provider
   /**
    * The amount of ETH or tokens to be deposited
    */