diff --git a/gulpfile.js b/gulpfile.js
index 51dda94..962c039 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -2,7 +2,7 @@
 const gulp = require('gulp');
 const zip = require('.');
 
-gulp.task('default', () =>
+exports.default = () => (
 	gulp.src('fixture/fixture.txt')
 		.pipe(zip('test.zip'))
 		.pipe(gulp.dest('dest'))
diff --git a/package.json b/package.json
index bd06153..b8a0ba9 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
 		"yazl": "^2.5.1"
 	},
 	"devDependencies": {
-		"ava": "^1.4.1",
+		"ava": "^2.3.0",
 		"decompress-unzip": "^3.0.0",
 		"gulp": "^4.0.2",
 		"vinyl-assign": "^1.2.1",
diff --git a/readme.md b/readme.md
index 683d449..8043c62 100644
--- a/readme.md
+++ b/readme.md
@@ -16,7 +16,7 @@ $ npm install --save-dev gulp-zip
 const gulp = require('gulp');
 const zip = require('gulp-zip');
 
-gulp.task('default', () =>
+exports.default = () => (
 	gulp.src('src/*')
 		.pipe(zip('archive.zip'))
 		.pipe(gulp.dest('dist'))