diff --git a/index.js b/index.js
index a8ab752..bf082a1 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 var fs = require('fs');
-var Writable = require('readable-stream/writable');
+var { Writable } = require('readable-stream');
 
 var exists = function(path) {
 	try {
diff --git a/package.json b/package.json
index c6f74d7..2818851 100644
--- a/package.json
+++ b/package.json
@@ -4,13 +4,13 @@
   "version": "1.4.1",
   "repository": "mafintosh/stdout-stream",
   "devDependencies": {
-    "tape": "~2.12.3"
+    "tape": "^5.5.3"
   },
   "scripts": {
     "test": "tape test/index.js"
   },
   "dependencies": {
-    "readable-stream": "^2.0.1"
+    "readable-stream": "^4.1.0"
   },
   "license": "MIT"
 }
diff --git a/test/index.js b/test/index.js
index d26d079..0077e7c 100644
--- a/test/index.js
+++ b/test/index.js
@@ -20,7 +20,7 @@ tape('end stdout', function(t) {
 		buf.push(data);
 	});
 	ch.stdout.on('end', function() {
-		t.same(Buffer.concat(buf).toString(), 'stdout');
+		t.same(buf.join(), 'stdout');
 		t.ok(!processOnExit);
 		stdoutOnEnd = true;
 	});