diff --git a/package.json b/package.json
index 421426898..7a3217d93 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "bugs": "https://github.com/oclif/core/issues",
   "dependencies": {
     "@oclif/linewrap": "^1.0.0",
-    "chalk": "^2.4.2",
+    "chalk": "^4.1.0",
     "clean-stack": "^3.0.0",
     "cli-ux": "^5.1.0",
     "debug": "^4.1.1",
@@ -85,7 +85,7 @@
     "lint": "eslint . --ext .ts --config .eslintrc",
     "posttest": "yarn lint",
     "prepack": "yarn run build",
-    "test": "mocha --forbid-only \"test/**/*.test.ts\"",
+    "test": "mocha --forbid-only \"test/**/*.test.ts\" --no-color",
     "version": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0 && git add CHANGELOG.md",
     "pretest": "yarn build --noEmit && tsc -p test --noEmit"
   },
diff --git a/src/errors/errors/cli.ts b/src/errors/errors/cli.ts
index 8b267a23f..46473ac6e 100644
--- a/src/errors/errors/cli.ts
+++ b/src/errors/errors/cli.ts
@@ -1,6 +1,6 @@
 // tslint:disable no-implicit-dependencies
 
-import Chalk from 'chalk'
+import * as Chalk from 'chalk'
 import Clean = require('clean-stack')
 import Indent = require('indent-string')
 import * as Wrap from 'wrap-ansi'
diff --git a/src/help/command.ts b/src/help/command.ts
index 6a2fdac0c..62dbad64d 100644
--- a/src/help/command.ts
+++ b/src/help/command.ts
@@ -1,5 +1,5 @@
 import * as Config from '../config'
-import chalk from 'chalk'
+import * as Chalk from 'chalk'
 import indent = require('indent-string')
 import stripAnsi = require('strip-ansi')
 
@@ -10,13 +10,13 @@ import {castArray, compact, sortBy, template} from './util'
 const {
   underline,
   bold,
-} = chalk
+} = Chalk
 let {
   dim,
-} = chalk
+} = Chalk
 
 if (process.env.ConEmuANSI === 'ON') {
-  dim = chalk.gray
+  dim = Chalk.gray
 }
 
 const wrap = require('wrap-ansi')
diff --git a/src/help/index.ts b/src/help/index.ts
index 281285a5e..cf062dd5c 100644
--- a/src/help/index.ts
+++ b/src/help/index.ts
@@ -1,6 +1,6 @@
 import * as Config from '../config'
 import {error} from '../errors'
-import chalk from 'chalk'
+import * as Chalk from 'chalk'
 import indent = require('indent-string')
 import stripAnsi = require('strip-ansi')
 
@@ -14,7 +14,7 @@ import {getHelpClass} from './util'
 const wrap = require('wrap-ansi')
 const {
   bold,
-} = chalk
+} = Chalk
 
 export interface HelpOptions {
   all?: boolean;
diff --git a/src/help/root.ts b/src/help/root.ts
index 9121ea976..502d8dba7 100644
--- a/src/help/root.ts
+++ b/src/help/root.ts
@@ -1,5 +1,5 @@
 import * as Config from '../config'
-import chalk from 'chalk'
+import * as Chalk from 'chalk'
 import indent = require('indent-string')
 import stripAnsi = require('strip-ansi')
 
@@ -9,7 +9,7 @@ import {compact, template} from './util'
 const wrap = require('wrap-ansi')
 const {
   bold,
-} = chalk
+} = Chalk
 
 export default class RootHelp {
   render: (input: string) => string
diff --git a/src/parser/help.ts b/src/parser/help.ts
index 7239e0ca9..744067b47 100644
--- a/src/parser/help.ts
+++ b/src/parser/help.ts
@@ -1,4 +1,4 @@
-import Chalk from 'chalk'
+import * as Chalk from 'chalk'
 
 import Deps from './deps'
 import {IFlag} from './flags'
diff --git a/test/parser/help.test.ts b/test/parser/help.test.ts
index 92b372cc8..a621a48d5 100644
--- a/test/parser/help.test.ts
+++ b/test/parser/help.test.ts
@@ -1,11 +1,8 @@
 import {expect} from 'chai'
-import chalk from 'chalk'
 
 import * as flags from '../../src/parser/flags'
 import {flagUsages} from '../../src/parser/help'
 
-chalk.enabled = false
-
 describe('flagUsage', () => {
   it('shows usages', () => {
     const f = [
diff --git a/test/parser/parse.test.ts b/test/parser/parse.test.ts
index f9fd4dfd9..bf402262e 100644
--- a/test/parser/parse.test.ts
+++ b/test/parser/parse.test.ts
@@ -1,11 +1,8 @@
 /* eslint-disable max-nested-callbacks */
 import {expect} from 'chai'
-import chalk from 'chalk'
 
 import {flags, parse} from '../../src/parser'
 
-chalk.enabled = false
-
 describe('parse', () => {
   it('--bool', () => {
     const out = parse(['--bool'], {