diff --git a/test/basic.test.js b/test/basic.test.js
index 3984f9fb..77c53e99 100644
--- a/test/basic.test.js
+++ b/test/basic.test.js
@@ -6,6 +6,7 @@ const test = require('tap').test
 const pino = require('pino')
 const dateformat = require('dateformat')
 const _prettyFactory = require('../')
+const chalk = require('chalk')
 
 function prettyFactory (opts) {
   if (!opts) {
@@ -710,7 +711,7 @@ test('basic prettifier tests', (t) => {
     const log = pino({}, new Writable({
       write (chunk, enc, cb) {
         const formatted = pretty(chunk.toString())
-        t.is(formatted, `[${epoch}] INFO (${pid} on ${hostname}): message {"extra":{"foo":"bar","number":42},"upper":"FOOBAR"}\n`)
+        t.is(formatted, `[${epoch}] INFO (${pid} on ${hostname}): message ${chalk.gray('{"extra":{"foo":"bar","number":42},"upper":"FOOBAR"}')}\n`)
 
         cb()
       }
diff --git a/test/error-objects.test.js b/test/error-objects.test.js
index e2c5cc91..7e44262b 100644
--- a/test/error-objects.test.js
+++ b/test/error-objects.test.js
@@ -4,6 +4,7 @@ const Writable = require('stream').Writable
 const os = require('os')
 const test = require('tap').test
 const pino = require('pino')
+const chalk = require('chalk')
 const serializers = pino.stdSerializers
 const _prettyFactory = require('../')
 
@@ -133,7 +134,7 @@ test('error like objects tests', (t) => {
         const formatted = pretty(chunk.toString())
         const lines = formatted.split('\n')
         t.is(lines.length, expected.length + 5)
-        t.is(lines[0], `[${epoch}] INFO (${pid} on ${hostname}): {"extra":{"a":1,"b":2}}`)
+        t.is(lines[0], `[${epoch}] INFO (${pid} on ${hostname}): ${chalk.gray('{"extra":{"a":1,"b":2}}')}`)
         t.match(lines[1], /\s{4}err: {/)
         t.match(lines[2], /\s{6}"type": "Error",/)
         t.match(lines[3], /\s{6}"message": "hello world",/)