diff --git a/.gitattributes b/.gitattributes
index 391f0a4..6313b56 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1 @@
-* text=auto
-*.js text eol=lf
+* text=auto eol=lf
diff --git a/.gitignore b/.gitignore
index 3c3629e..239ecff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 node_modules
+yarn.lock
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..43c97e7
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+package-lock=false
diff --git a/.travis.yml b/.travis.yml
index 7d69d74..f98fed0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: node_js
 node_js:
+  - '12'
+  - '10'
   - '8'
-  - '6'
-  - '4'
diff --git a/index.js b/index.js
index f6b07e8..8ab64b4 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,7 @@
 'use strict';
 const ansiRegex = require('ansi-regex');
 
-// Remove the `g` flag
-const re = new RegExp(ansiRegex().source);
+// Removes the `g` flag
+const regex = new RegExp(ansiRegex().source);
 
-module.exports = input => re.test(input);
+module.exports = string => regex.test(string);
diff --git a/package.json b/package.json
index fe9ac06..dacffaf 100644
--- a/package.json
+++ b/package.json
@@ -1,52 +1,51 @@
 {
-  "name": "has-ansi",
-  "version": "3.0.0",
-  "description": "Check if a string has ANSI escape codes",
-  "license": "MIT",
-  "repository": "chalk/has-ansi",
-  "author": {
-    "name": "Sindre Sorhus",
-    "email": "sindresorhus@gmail.com",
-    "url": "sindresorhus.com"
-  },
-  "engines": {
-    "node": ">=4"
-  },
-  "scripts": {
-    "test": "xo && ava"
-  },
-  "files": [
-    "index.js"
-  ],
-  "keywords": [
-    "ansi",
-    "styles",
-    "color",
-    "colour",
-    "colors",
-    "terminal",
-    "console",
-    "string",
-    "tty",
-    "escape",
-    "shell",
-    "xterm",
-    "command-line",
-    "text",
-    "regex",
-    "regexp",
-    "re",
-    "match",
-    "test",
-    "find",
-    "pattern",
-    "has"
-  ],
-  "dependencies": {
-    "ansi-regex": "^3.0.0"
-  },
-  "devDependencies": {
-    "ava": "*",
-    "xo": "*"
-  }
+	"name": "has-ansi",
+	"version": "3.0.0",
+	"description": "Check if a string has ANSI escape codes",
+	"license": "MIT",
+	"repository": "chalk/has-ansi",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava"
+	},
+	"files": [
+		"index.js"
+	],
+	"keywords": [
+		"ansi",
+		"styles",
+		"color",
+		"colour",
+		"colors",
+		"terminal",
+		"console",
+		"string",
+		"tty",
+		"escape",
+		"shell",
+		"xterm",
+		"command-line",
+		"text",
+		"regex",
+		"regexp",
+		"match",
+		"test",
+		"find",
+		"pattern",
+		"has"
+	],
+	"dependencies": {
+		"ansi-regex": "^4.1.0"
+	},
+	"devDependencies": {
+		"ava": "^2.3.0",
+		"xo": "^0.24.0"
+	}
 }
diff --git a/test.js b/test.js
index 26d811d..20db2c1 100644
--- a/test.js
+++ b/test.js
@@ -1,7 +1,7 @@
 import test from 'ava';
-import m from '.';
+import hasAnsi from '.';
 
-test(t => {
-	t.true(m('foo\u001B[4mcake\u001B[0m'));
-	t.false(m('cake'));
+test('main', t => {
+	t.true(hasAnsi('foo\u001B[4mcake\u001B[0m'));
+	t.false(hasAnsi('cake'));
 });