diff --git a/package.json b/package.json
index 5b87e3d8..dbf68311 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   "devDependencies": {
     "code": "^1.2.1",
     "coveralls": "^2.7.0",
-    "gulp": ">=3.8.10",
+    "gulp": "gulpjs/gulp#4.0",
     "jscs": "^1.11.3",
     "jshint": "^2.5.0",
     "jshint-stylish": "^2.0.1",
diff --git a/test/fixtures/gulpfile.js b/test/fixtures/gulpfile.js
index 852c5d81..581fc5e4 100644
--- a/test/fixtures/gulpfile.js
+++ b/test/fixtures/gulpfile.js
@@ -2,12 +2,19 @@
 
 var gulp = require('gulp');
 
-function noop() {}
-function described() {}
+function noop(done) {
+  done();
+}
+
+function described(done) {
+  done();
+}
+
 described.description = 'description';
 
 gulp.task('test1', noop);
-gulp.task('test2', ['test1'], noop);
+gulp.task('test2', gulp.series('test1'));
 gulp.task('test3', described);
 
-gulp.task('default', ['test1', 'test3'], noop);
+gulp.task('default', gulp.series('test1', 'test3'));
+
diff --git a/test/flags-tasks.js b/test/flags-tasks.js
index 439de618..9263f1d9 100644
--- a/test/flags-tasks.js
+++ b/test/flags-tasks.js
@@ -11,16 +11,20 @@ lab.experiment('flag: --tasks', function() {
     child.exec('node ' + __dirname + '/../bin/gulp.js --tasks --cwd ./test/fixtures', function(err, stdout) {
       code.expect(stdout).to.contain('Tasks for');
       stdout = stdout.replace(/\\/g, '/').split('Tasks for')[1].split('\n');
-      code.expect(stdout[0]).to.contain('/gulp-cli/test');
-      code.expect(stdout[1]).to.contain('├── test1');
-      code.expect(stdout[2]).to.contain('├─┬ test2');
-      code.expect(stdout[3]).to.contain('│ └── test1');
-      code.expect(stdout[4]).to.contain('├── test3    description');
-      code.expect(stdout[5]).to.contain('└─┬ default');
-      code.expect(stdout[6]).to.contain('  ├── test1');
-      code.expect(stdout[7]).to.contain('  └── test3');
+      var i = 0;
+      code.expect(stdout[i++]).to.contain('/gulp-cli/test');
+      code.expect(stdout[i++]).to.contain('├── test1');
+      code.expect(stdout[i++]).to.contain('├─┬ test2');
+      code.expect(stdout[i++]).to.contain('│ └─┬ <series>');
+      code.expect(stdout[i++]).to.contain('│   └── test1');
+      code.expect(stdout[i++]).to.contain('├── test3       description');
+      code.expect(stdout[i++]).to.contain('└─┬ default');
+      code.expect(stdout[i++]).to.contain('  └─┬ <series>');
+      code.expect(stdout[i++]).to.contain('    ├── test1');
+      code.expect(stdout[i++]).to.contain('    └── test3');
       done(err);
     });
   });
 
 });
+