diff --git a/packages/web3-utils/src/index.js b/packages/web3-utils/src/index.js
index 70508302681..12c3ba33b1b 100644
--- a/packages/web3-utils/src/index.js
+++ b/packages/web3-utils/src/index.js
@@ -195,7 +195,7 @@ export const fromWei = (number, unit) => {
     unit = getUnitValue(unit);
 
     if (!utils.isBN(number) && !isString(number)) {
-        throw new Error('Please pass numbers as strings or BigNumber objects to avoid precision errors.');
+        throw new Error('Please pass numbers as strings or BN objects to avoid precision errors.');
     }
 
     return utils.isBN(number) ? ethjsUnit.fromWei(number, unit) : ethjsUnit.fromWei(number, unit).toString(10);
@@ -229,7 +229,7 @@ export const toWei = (number, unit) => {
     unit = getUnitValue(unit);
 
     if (!utils.isBN(number) && !isString(number)) {
-        throw new Error('Please pass numbers as strings or BigNumber objects to avoid precision errors.');
+        throw new Error('Please pass numbers as strings or BN objects to avoid precision errors.');
     }
 
     return utils.isBN(number) ? ethjsUnit.toWei(number, unit) : ethjsUnit.toWei(number, unit).toString(10);
diff --git a/packages/web3-utils/tests/src/UtilsTest.js b/packages/web3-utils/tests/src/UtilsTest.js
index 11ea3416ece..797b0f1189b 100644
--- a/packages/web3-utils/tests/src/UtilsTest.js
+++ b/packages/web3-utils/tests/src/UtilsTest.js
@@ -461,7 +461,7 @@ describe('UtilsTest', () => {
 
         expect(() => {
             toWei(1, 'wei');
-        }).toThrow('Please pass numbers as strings or BigNumber objects to avoid precision errors.');
+        }).toThrow('Please pass numbers as strings or BN objects to avoid precision errors.');
     });
 
     it('calls utf8ToHex and returns the expected results', () => {