diff --git a/index.js b/index.js
index fed565c..f6647fa 100644
--- a/index.js
+++ b/index.js
@@ -1,10 +1,7 @@
-var aparse = require('acorn').parse;
+var aparse = require('acorn-node').parse;
 function parse (src, opts) {
     if (!opts) opts = {}
-    return aparse(src, {
-        ecmaVersion: opts.ecmaVersion || 8,
-        allowHashBang: true
-    });
+    return aparse(src, opts);
 }
 
 module.exports = function (src, file,opts) {
diff --git a/package.json b/package.json
index 399abf6..bf36a0c 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "detect and report syntax errors in source code strings",
   "main": "index.js",
   "dependencies": {
-    "acorn": "^4.0.3"
+    "acorn-node": "^1.2.0"
   },
   "devDependencies": {
     "tap": "^1.1.0"
diff --git a/readme.markdown b/readme.markdown
index 7025150..647d06f 100644
--- a/readme.markdown
+++ b/readme.markdown
@@ -26,7 +26,7 @@ if (err) {
 }
 ```
 
-***
+---
 
 ```
 $ node check.js
@@ -55,9 +55,8 @@ stringified.
 
 If there are no syntax errors in `src`, return `undefined`.
 
-Optionally set:
-
-* `opts.ecmaVersion` - default: 8
+Options will be passed through to [acorn-node](https://github.com/browserify/acorn-node).
+acorn-node defaults to options that match the most recent Node versions.
 
 ## err.toString()
 
diff --git a/test/esm.js b/test/esm.js
new file mode 100644
index 0000000..ab475d2
--- /dev/null
+++ b/test/esm.js
@@ -0,0 +1,23 @@
+var test = require('tap').test;
+
+var fs = require('fs');
+var check = require('../');
+
+var file = __dirname + '/sources/esm.js';
+var src = fs.readFileSync(file);
+
+test('esm with sourceType script', function (t) {
+    var err = check(src, file);
+    t.ok(err);
+    t.equal(err.line, 1);
+    t.equal(err.column, 1);
+    t.equal(err.message, "'import' and 'export' may appear only with 'sourceType: module'");
+    t.ok(String(err).indexOf(file + ':1'));
+    t.end();
+});
+
+test('esm with sourceType module', function (t) {
+    var err = check(src, file, { sourceType: 'module' });
+    t.notOk(err);
+    t.end();
+});
diff --git a/test/sources/esm.js b/test/sources/esm.js
new file mode 100644
index 0000000..220e115
--- /dev/null
+++ b/test/sources/esm.js
@@ -0,0 +1,2 @@
+import x from 'y';
+export default z;
diff --git a/test/sources/spread.js b/test/sources/spread.js
new file mode 100644
index 0000000..0938d93
--- /dev/null
+++ b/test/sources/spread.js
@@ -0,0 +1,2 @@
+var a = { ...b }
+;({ d, ...e } = a)
diff --git a/test/spread.js b/test/spread.js
new file mode 100644
index 0000000..c0ed3b4
--- /dev/null
+++ b/test/spread.js
@@ -0,0 +1,13 @@
+var test = require('tap').test;
+
+var fs = require('fs');
+var check = require('../');
+
+var file = __dirname + '/sources/spread.js';
+var src = fs.readFileSync(file);
+
+test('spread', function (t) {
+    var err = check(src, file);
+    t.notOk(err);
+    t.end();
+});