diff --git a/index.js b/index.js
index 9ddc30d..b2d817f 100644
--- a/index.js
+++ b/index.js
@@ -31,7 +31,7 @@ Stream.Duplex = require('readable-stream/lib/_stream_duplex.js');
 Stream.Transform = require('readable-stream/lib/_stream_transform.js');
 Stream.PassThrough = require('readable-stream/lib/_stream_passthrough.js');
 Stream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js')
-Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js')
+Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js').pipeline
 
 // Backwards-compat with node 0.4.x
 Stream.Stream = Stream;
diff --git a/package.json b/package.json
index 0ba5a5d..2c3485e 100644
--- a/package.json
+++ b/package.json
@@ -5,12 +5,12 @@
   "main": "index.js",
   "dependencies": {
     "inherits": "~2.0.4",
-    "readable-stream": "^3.5.0"
+    "readable-stream": "^4.3.0"
   },
   "devDependencies": {
-    "airtap": "^1.0.2",
-    "safe-buffer": "^5.1.2",
-    "tape": "^4.13.0",
+    "airtap": "^4.0.4",
+    "safe-buffer": "^5.2.1",
+    "tape": "^5.6.3",
     "through": "^2.3.8"
   },
   "scripts": {