diff --git a/packages/abstract-provider/src.ts/index.ts b/packages/abstract-provider/src.ts/index.ts
index 108e7c3390..8d21c09fe6 100644
--- a/packages/abstract-provider/src.ts/index.ts
+++ b/packages/abstract-provider/src.ts/index.ts
@@ -2,7 +2,6 @@
 
 import { BigNumber, BigNumberish } from "@ethersproject/bignumber";
 import { BytesLike, isHexString } from "@ethersproject/bytes";
-import { checkAbstract } from "@ethersproject/errors";
 import { Network } from "@ethersproject/networks";
 import { Description, defineReadOnly } from "@ethersproject/properties";
 import { Transaction } from "@ethersproject/transactions";
@@ -261,7 +260,7 @@ export abstract class Provider implements OnceBlockable {
     readonly _isProvider: boolean;
 
     constructor() {
-        checkAbstract(new.target, Provider);
+        logger.checkAbstract(new.target, Provider);
         defineReadOnly(this, "_isProvider", true);
     }
 
diff --git a/packages/sha2/src.ts/index.ts b/packages/sha2/src.ts/index.ts
index 676176ef26..a9f18dcda7 100644
--- a/packages/sha2/src.ts/index.ts
+++ b/packages/sha2/src.ts/index.ts
@@ -3,8 +3,10 @@
 import { createHash, createHmac } from 'crypto';
 
 import { arrayify, BytesLike } from '@ethersproject/bytes';
-import * as errors from '@ethersproject/errors';
 
+import { Logger } from "@ethersproject/logger";
+import { version } from "./_version";
+const logger = new Logger(version);
 
 export enum SupportedAlgorithms { sha256 = "sha256", sha512 = "sha512" };
 
@@ -24,7 +26,7 @@ export function sha512(data: BytesLike): string {
 
 export function computeHmac(algorithm: SupportedAlgorithms, key: BytesLike, data: BytesLike): string {
     if (!SupportedAlgorithms[algorithm]) {
-        errors.throwError("unsupported algorithm - " + algorithm, errors.UNSUPPORTED_OPERATION, {
+        logger.throwError("unsupported algorithm - " + algorithm, Logger.errors.UNSUPPORTED_OPERATION, {
             operation: "computeHmac",
             algorithm: algorithm
         });