diff --git a/lib/data-stream.js b/lib/data-stream.js
index 3535d31..9bdb600 100644
--- a/lib/data-stream.js
+++ b/lib/data-stream.js
@@ -1,6 +1,6 @@
 /*global module, process*/
 var Buffer = require('safe-buffer').Buffer;
-var Stream = require('stream');
+var Stream = require('readable-stream');
 var util = require('util');
 
 function DataStream(data) {
diff --git a/lib/sign-stream.js b/lib/sign-stream.js
index 6a7ee42..61be9f1 100644
--- a/lib/sign-stream.js
+++ b/lib/sign-stream.js
@@ -2,7 +2,7 @@
 var Buffer = require('safe-buffer').Buffer;
 var DataStream = require('./data-stream');
 var jwa = require('jwa');
-var Stream = require('stream');
+var Stream = require('readable-stream');
 var toString = require('./tostring');
 var util = require('util');
 
diff --git a/lib/verify-stream.js b/lib/verify-stream.js
index 39f7c73..c7c9d9e 100644
--- a/lib/verify-stream.js
+++ b/lib/verify-stream.js
@@ -2,7 +2,7 @@
 var Buffer = require('safe-buffer').Buffer;
 var DataStream = require('./data-stream');
 var jwa = require('jwa');
-var Stream = require('stream');
+var Stream = require('readable-stream');
 var toString = require('./tostring');
 var util = require('util');
 var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/;
diff --git a/package.json b/package.json
index 87d4fcc..3890b1a 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
   "gitHead": "c0f6b27bcea5a2ad2e304d91c2e842e4076a6b03",
   "dependencies": {
     "jwa": "^2.0.0",
+    "readable-stream": "^3.6.0",
     "safe-buffer": "^5.0.1"
   },
   "devDependencies": {