diff --git a/lib/platform.browser.js b/lib/platform.browser.js
index 3710a16..c561265 100644
--- a/lib/platform.browser.js
+++ b/lib/platform.browser.js
@@ -5,17 +5,19 @@
 "use strict";
 
 var createHash = require("sha.js");
-var ripemd160 = require("ripemd160");
+var hash = require("hash.js");
 
 exports.sha512 = function(buf) {
   return createHash("sha512").update(buf).digest();
 };
 
 exports.sha256 = function(buf) {
-  return createHash("sha256").update(buf).digest();
+  return hash.sha256().update(buf).digest();
 };
 
-exports.ripemd160 = ripemd160;
+exports.ripemd160 = function(buf) {
+  return hash.ripemd160().update(buf).digest();
+};
 
 exports.randomBytes = function(size) {
   var arr = new Uint8Array(size);
diff --git a/package.json b/package.json
index b8c1e66..3ea2ebb 100644
--- a/package.json
+++ b/package.json
@@ -49,8 +49,8 @@
     "bs58": "^2.0.0",
     "buffer-equal": "~0.0.1",
     "eccrypto": "^0.1.1",
+    "hash.js": "^0.3.2",
     "object.assign": "^1.1.1",
-    "ripemd160": "^0.2.0",
     "sha.js": "^2.3.0"
   }
 }