diff --git a/cps/helper.py b/cps/helper.py
index c89bdf3d..56caf50c 100644
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -466,7 +466,7 @@ def reset_password(user_id):
 def generate_random_password():
     s = "abcdefghijklmnopqrstuvwxyz01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%&*()?"
     passlen = 8
-    return "".join(random.sample(s, passlen))
+    return "".join(s[c % len(s)] for c in os.urandom(passlen))
 
 ################################## External interface