diff --git a/client/lib/hash-key.js b/client/lib/hash-key.js
index 95dee5e..4c1654a 100644
--- a/client/lib/hash-key.js
+++ b/client/lib/hash-key.js
@@ -1,14 +1,14 @@
 var crypto = require('crypto');
 
 /**
- * Hash a key using md4 & base64 encoding. Md4 is used as the implementation
+ * Hash a key using md5 & base64 encoding. Md4 is used as the implementation
  * in node is the fastest hashing alg supported.
  * @param {string} key value to hash
  * @return {string} hashed key
  */
 var hashKey = function hashKey(key) {
     return crypto
-        .createHash('md4')
+        .createHash('md5')
         .update(key)
         .digest('base64');
 };