diff --git a/cluster/util.sh b/cluster/util.sh
index 668889de7f6b..0419238d2a5a 100755
--- a/cluster/util.sh
+++ b/cluster/util.sh
@@ -88,6 +88,6 @@ function get-password {
     return
   fi
   user=admin
-  passwd=$(python -c 'import string,random; print "".join(random.choice(string.ascii_letters + string.digits) for _ in range(16))')
+  passwd=$(python -c 'import string,random; print "".join(random.SystemRandom().choice(string.ascii_letters + string.digits) for _ in range(16))')
 }