diff --git a/.travis.yml b/.travis.yml
index 5e3bcf3..1492647 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: node_js
 node_js:
+  - '12'
   - '10'
   - '8'
 after_success:
diff --git a/index.d.ts b/index.d.ts
index 6256ce3..c7d4a54 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,276 +1,287 @@
-export const enum Level {
+declare const enum LevelEnum {
 	/**
-	 * All colors disabled.
-	 */
+	All colors disabled.
+	*/
 	None = 0,
 
 	/**
-	 * Basic 16 colors support.
-	 */
+	Basic 16 colors support.
+	*/
 	Basic = 1,
 
 	/**
-	 * ANSI 256 colors support.
-	 */
+	ANSI 256 colors support.
+	*/
 	Ansi256 = 2,
 
 	/**
-	 * Truecolor 16 million colors support.
-	 */
+	Truecolor 16 million colors support.
+	*/
 	TrueColor = 3
 }
 
-export interface Options {
+declare namespace chalk {
+	type Level = LevelEnum;
+
+	interface Options {
+		/**
+		Enable or disable Chalk.
+
+		@default true
+		*/
+		enabled?: boolean;
+
+		/**
+		Specify the color support for Chalk.
+		By default, color support is automatically detected based on the environment.
+		*/
+		level?: Level;
+	}
+
+	interface Instance {
+		/**
+		Return a new Chalk instance.
+		*/
+		new (options?: Options): Chalk;
+	}
+
 	/**
-	 * Enable or disable Chalk.
-	 *
-	 * @default true
-	 */
-	enabled?: boolean;
+	Detect whether the terminal supports color.
+	*/
+	interface ColorSupport {
+		/**
+		The color level used by Chalk.
+		*/
+		level: Level;
+
+		/**
+		Return whether Chalk supports basic 16 colors.
+		*/
+		hasBasic: boolean;
+
+		/**
+		Return whether Chalk supports ANSI 256 colors.
+		*/
+		has256: boolean;
 
-	/**
-	 * Specify the color support for Chalk.
-	 * By default, color support is automatically detected based on the environment.
-	 */
-	level?: Level;
-}
-
-export interface Instance {
-	/**
-	 * Return a new Chalk instance.
-	 */
-	new (options?: Options): Chalk;
-}
-
-/**
- * Detect whether the terminal supports color.
- */
-export interface ColorSupport {
-	/**
-	 * The color level used by Chalk.
-	 */
-	level: Level;
-
-	/**
-	 * Return whether Chalk supports basic 16 colors.
-	 */
-	hasBasic: boolean;
-
-	/**
-	 * Return whether Chalk supports ANSI 256 colors.
-	 */
-	has256: boolean;
-
-	/**
-	 * Return whether Chalk supports Truecolor 16 million colors.
-	 */
-	has16m: boolean;
-}
-
-export interface Chalk {
-	(...text: unknown[]): string;
-
-	(text: TemplateStringsArray, ...placeholders: unknown[]): string;
-
-	/**
-	 * Return a new Chalk instance.
-	 */
-	Instance: Instance;
-
-	/**
-	 * Enable or disable Chalk.
-	 *
-	 * @default true
-	 */
-	enabled: boolean;
-
-	/**
-	 * The color support for Chalk.
-	 * By default, color support is automatically detected based on the environment.
-	 */
-	level: Level;
-
-	/**
-	 * Use HEX value to set text color.
-	 *
-	 * @param color - Hexadecimal value representing the desired color.
-	 *
-	 * @example
-	 *
-	 * import chalk from 'chalk';
-	 *
-	 * chalk.hex('#DEADED');
-	 */
-	hex(color: string): this;
-
-	/**
-	 * Use keyword color value to set text color.
-	 *
-	 * @param color - Keyword value representing the desired color.
-	 *
-	 * @example
-	 *
-	 * import chalk from 'chalk';
-	 *
-	 * chalk.keyword('orange');
-	 */
-	keyword(color: string): this;
-
-	/**
-	 * Use RGB values to set text color.
-	 */
-	rgb(red: number, green: number, blue: number): this;
-
-	/**
-	 * Use HSL values to set text color.
-	 */
-	hsl(hue: number, saturation: number, lightness: number): this;
-
-	/**
-	 * Use HSV values to set text color.
-	 */
-	hsv(hue: number, saturation: number, value: number): this;
-
-	/**
-	 * Use HWB values to set text color.
-	 */
-	hwb(hue: number, whiteness: number, blackness: number): this;
-
-	/**
-	 * Use HEX value to set background color.
-	 *
-	 * @param color - Hexadecimal value representing the desired color.
-	 *
-	 * @example
-	 *
-	 * import chalk from 'chalk';
-	 *
-	 * chalk.bgHex('#DEADED');
-	 */
-	bgHex(color: string): this;
-
-	/**
-	 * Use keyword color value to set background color.
-	 *
-	 * @param color - Keyword value representing the desired color.
-	 *
-	 * @example
-	 *
-	 * import chalk from 'chalk';
-	 *
-	 * chalk.bgKeyword('orange');
-	 */
-	bgKeyword(color: string): this;
-
-	/**
-	 * Use RGB values to set background color.
-	 */
-	bgRgb(red: number, green: number, blue: number): this;
-
-	/**
-	 * Use HSL values to set background color.
-	 */
-	bgHsl(hue: number, saturation: number, lightness: number): this;
-
-	/**
-	 * Use HSV values to set background color.
-	 */
-	bgHsv(hue: number, saturation: number, value: number): this;
-
-	/**
-	 * Use HWB values to set background color.
-	 */
-	bgHwb(hue: number, whiteness: number, blackness: number): this;
-
-	/**
-	 * Modifier: Resets the current color chain.
-	 */
-	readonly reset: this;
-
-	/**
-	 * Modifier: Make text bold.
-	 */
-	readonly bold: this;
-
-	/**
-	 * Modifier: Emitting only a small amount of light.
-	 */
-	readonly dim: this;
-
-	/**
-	 * Modifier: Make text italic. (Not widely supported)
-	 */
-	readonly italic: this;
-
-	/**
-	 * Modifier: Make text underline. (Not widely supported)
-	 */
-	readonly underline: this;
-
-	/**
-	 * Modifier: Inverse background and foreground colors.
-	 */
-	readonly inverse: this;
-
-	/**
-	 * Modifier: Prints the text, but makes it invisible.
-	 */
-	readonly hidden: this;
-
-	/**
-	 * Modifier: Puts a horizontal line through the center of the text. (Not widely supported)
-	 */
-	readonly strikethrough: this;
+		/**
+		Return whether Chalk supports Truecolor 16 million colors.
+		*/
+		has16m: boolean;
+	}
 
-	/**
-	 * Modifier: Prints the text only when Chalk is enabled.
-	 * Can be useful for things that are purely cosmetic.
-	 */
-	readonly visible: this;
-
-	readonly black: this;
-	readonly red: this;
-	readonly green: this;
-	readonly yellow: this;
-	readonly blue: this;
-	readonly magenta: this;
-	readonly cyan: this;
-	readonly white: this;
-	readonly gray: this;
-	readonly grey: this;
-	readonly blackBright: this;
-	readonly redBright: this;
-	readonly greenBright: this;
-	readonly yellowBright: this;
-	readonly blueBright: this;
-	readonly magentaBright: this;
-	readonly cyanBright: this;
-	readonly whiteBright: this;
-
-	readonly bgBlack: this;
-	readonly bgRed: this;
-	readonly bgGreen: this;
-	readonly bgYellow: this;
-	readonly bgBlue: this;
-	readonly bgMagenta: this;
-	readonly bgCyan: this;
-	readonly bgWhite: this;
-	readonly bgBlackBright: this;
-	readonly bgRedBright: this;
-	readonly bgGreenBright: this;
-	readonly bgYellowBright: this;
-	readonly bgBlueBright: this;
-	readonly bgMagentaBright: this;
-	readonly bgCyanBright: this;
-	readonly bgWhiteBright: this;
+	interface Chalk {
+		(...text: unknown[]): string;
+
+		(text: TemplateStringsArray, ...placeholders: unknown[]): string;
+
+		/**
+		Return a new Chalk instance.
+		*/
+		Instance: Instance;
+
+		/**
+		Enable or disable Chalk.
+
+		@default true
+		*/
+		enabled: boolean;
+
+		/**
+		The color support for Chalk.
+		By default, color support is automatically detected based on the environment.
+		*/
+		level: Level;
+
+		/**
+		Use HEX value to set text color.
+
+		@param color - Hexadecimal value representing the desired color.
+
+		@example
+		```
+		import chalk = require('chalk');
+
+		chalk.hex('#DEADED');
+		```
+		*/
+		hex(color: string): this;
+
+		/**
+		Use keyword color value to set text color.
+
+		@param color - Keyword value representing the desired color.
+
+		@example
+		```
+		import chalk = require('chalk');
+
+		chalk.keyword('orange');
+		```
+		*/
+		keyword(color: string): this;
+
+		/**
+		Use RGB values to set text color.
+		*/
+		rgb(red: number, green: number, blue: number): this;
+
+		/**
+		Use HSL values to set text color.
+		*/
+		hsl(hue: number, saturation: number, lightness: number): this;
+
+		/**
+		Use HSV values to set text color.
+		*/
+		hsv(hue: number, saturation: number, value: number): this;
+
+		/**
+		Use HWB values to set text color.
+		*/
+		hwb(hue: number, whiteness: number, blackness: number): this;
+
+		/**
+		Use HEX value to set background color.
+
+		@param color - Hexadecimal value representing the desired color.
+
+		@example
+		```
+		import chalk = require('chalk');
+
+		chalk.bgHex('#DEADED');
+		```
+		*/
+		bgHex(color: string): this;
+
+		/**
+		Use keyword color value to set background color.
+
+		@param color - Keyword value representing the desired color.
+
+		@example
+		```
+		import chalk = require('chalk');
+
+		chalk.bgKeyword('orange');
+		```
+		*/
+		bgKeyword(color: string): this;
+
+		/**
+		Use RGB values to set background color.
+		*/
+		bgRgb(red: number, green: number, blue: number): this;
+
+		/**
+		Use HSL values to set background color.
+		*/
+		bgHsl(hue: number, saturation: number, lightness: number): this;
+
+		/**
+		Use HSV values to set background color.
+		*/
+		bgHsv(hue: number, saturation: number, value: number): this;
+
+		/**
+		Use HWB values to set background color.
+		*/
+		bgHwb(hue: number, whiteness: number, blackness: number): this;
+
+		/**
+		Modifier: Resets the current color chain.
+		*/
+		readonly reset: this;
+
+		/**
+		Modifier: Make text bold.
+		*/
+		readonly bold: this;
+
+		/**
+		Modifier: Emitting only a small amount of light.
+		*/
+		readonly dim: this;
+
+		/**
+		Modifier: Make text italic. (Not widely supported)
+		*/
+		readonly italic: this;
+
+		/**
+		Modifier: Make text underline. (Not widely supported)
+		*/
+		readonly underline: this;
+
+		/**
+		Modifier: Inverse background and foreground colors.
+		*/
+		readonly inverse: this;
+
+		/**
+		Modifier: Prints the text, but makes it invisible.
+		*/
+		readonly hidden: this;
+
+		/**
+		Modifier: Puts a horizontal line through the center of the text. (Not widely supported)
+		*/
+		readonly strikethrough: this;
+
+		/**
+		Modifier: Prints the text only when Chalk is enabled.
+		Can be useful for things that are purely cosmetic.
+		*/
+		readonly visible: this;
+
+		readonly black: this;
+		readonly red: this;
+		readonly green: this;
+		readonly yellow: this;
+		readonly blue: this;
+		readonly magenta: this;
+		readonly cyan: this;
+		readonly white: this;
+		readonly gray: this;
+		readonly grey: this;
+		readonly blackBright: this;
+		readonly redBright: this;
+		readonly greenBright: this;
+		readonly yellowBright: this;
+		readonly blueBright: this;
+		readonly magentaBright: this;
+		readonly cyanBright: this;
+		readonly whiteBright: this;
+
+		readonly bgBlack: this;
+		readonly bgRed: this;
+		readonly bgGreen: this;
+		readonly bgYellow: this;
+		readonly bgBlue: this;
+		readonly bgMagenta: this;
+		readonly bgCyan: this;
+		readonly bgWhite: this;
+		readonly bgBlackBright: this;
+		readonly bgRedBright: this;
+		readonly bgGreenBright: this;
+		readonly bgYellowBright: this;
+		readonly bgBlueBright: this;
+		readonly bgMagentaBright: this;
+		readonly bgCyanBright: this;
+		readonly bgWhiteBright: this;
+	}
 }
 
 /**
- * Main Chalk object that allows to chain styles together.
- * Call the last one as a method with a string argument.
- * Order doesn't matter, and later styles take precedent in case of a conflict.
- * This simply means that `chalk.red.yellow.green` is equivalent to `chalk.green`.
- */
-declare const chalk: Chalk & {supportsColor: ColorSupport};
-
-export default chalk;
+Main Chalk object that allows to chain styles together.
+Call the last one as a method with a string argument.
+Order doesn't matter, and later styles take precedent in case of a conflict.
+This simply means that `chalk.red.yellow.green` is equivalent to `chalk.green`.
+*/
+declare const chalk: chalk.Chalk & {
+	supportsColor: chalk.ColorSupport;
+	Level: typeof LevelEnum;
+};
+
+export = chalk;
diff --git a/index.js b/index.js
index 7d00571..9f5575a 100644
--- a/index.js
+++ b/index.js
@@ -199,4 +199,3 @@ Object.defineProperties(Chalk.prototype, styles);
 
 module.exports = Chalk(); // eslint-disable-line new-cap
 module.exports.supportsColor = stdoutColor;
-module.exports.default = module.exports; // For TypeScript
diff --git a/index.test-d.ts b/index.test-d.ts
index 0b26e9c..7a791a8 100644
--- a/index.test-d.ts
+++ b/index.test-d.ts
@@ -1,14 +1,14 @@
-import {expectType} from 'tsd-check';
-import chalk, {Level, Chalk, ColorSupport} from '.';
+import {expectType} from 'tsd';
+import chalk = require('.');
 
 // - Helpers -
-type colorReturn = Chalk & {supportsColor: ColorSupport};
+type colorReturn = chalk.Chalk & {supportsColor: chalk.ColorSupport};
 
 // - Level -
-expectType<number>(Level.None);
-expectType<number>(Level.Basic);
-expectType<number>(Level.Ansi256);
-expectType<number>(Level.TrueColor);
+expectType<number>(chalk.Level.None);
+expectType<number>(chalk.Level.Basic);
+expectType<number>(chalk.Level.Ansi256);
+expectType<number>(chalk.Level.TrueColor);
 
 // - supportsColor -
 expectType<boolean>(chalk.supportsColor.hasBasic);
@@ -17,11 +17,11 @@ expectType<boolean>(chalk.supportsColor.has16m);
 
 // - Chalk -
 // -- Instance --
-expectType<Chalk>(new chalk.Instance({level: 1}));
+expectType<chalk.Chalk>(new chalk.Instance({level: 1}));
 
 // -- Properties --
 expectType<boolean>(chalk.enabled);
-expectType<Level>(chalk.level);
+expectType<chalk.Level>(chalk.level);
 
 // -- Template literal --
 expectType<string>(chalk``);
diff --git a/package.json b/package.json
index bbc1634..39ec03d 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
 		"node": ">=8"
 	},
 	"scripts": {
-		"test": "xo && nyc ava && tsd-check && flow",
+		"test": "xo && nyc ava && tsd && flow",
 		"bench": "matcha benchmark.js"
 	},
 	"files": [
@@ -46,19 +46,18 @@
 		"supports-color": "^6.1.0"
 	},
 	"devDependencies": {
-		"@sindresorhus/tsconfig": "^0.2.1",
-		"ava": "^1.3.1",
+		"@sindresorhus/tsconfig": "^0.3.0",
+		"ava": "^1.4.1",
 		"coveralls": "^3.0.3",
 		"execa": "^1.0.0",
-		"flow-bin": "^0.94.0",
+		"flow-bin": "^0.98.0",
 		"import-fresh": "^3.0.0",
 		"matcha": "^0.7.0",
-		"nyc": "^13.3.0",
-		"resolve-from": "^4.0.0",
-		"tsd-check": "^0.3.0",
+		"nyc": "^14.0.0",
+		"resolve-from": "^5.0.0",
+		"tsd": "^0.7.2",
 		"xo": "^0.24.0"
 	},
-	"types": "index.d.ts",
 	"xo": {
 		"ignores": [
 			"test/_flow.js"