diff --git a/src/createSafePrepareTransactionRequest.ts b/src/createSafePrepareTransactionRequest.ts
index 2a3c6c5a..0684ec46 100644
--- a/src/createSafePrepareTransactionRequest.ts
+++ b/src/createSafePrepareTransactionRequest.ts
@@ -77,7 +77,7 @@ export const SafeProxyFactoryAbi = [
  */
 export type CreateSafePrepareTransactionRequestParams<TChain extends Chain | undefined> = {
   publicClient: PublicClient<Transport, TChain>;
-  account: PrivateKeyAccount | `0x${string}`;
+  account: Address;
   owners: Address[];
   threshold: number;
   saltNonce?: bigint;