diff --git a/cl-password.lisp b/cl-password.lisp
index 9b4ddc2..6550383 100644
--- a/cl-password.lisp
+++ b/cl-password.lisp
@@ -1,6 +1,6 @@
 (in-package :cl-password)
 
-(defparameter *prng* (make-prng :fortuna :seed :random))
+(defparameter *prng* (make-prng :fortuna :seed :urandom))
 
 (defun make-random-salt (&optional (size 16))
   (random-data size *prng*))