diff --git a/docs/emails/cryptography/4.md b/docs/emails/cryptography/4.md
index efeb0fb..5f783f9 100644
--- a/docs/emails/cryptography/4.md
+++ b/docs/emails/cryptography/4.md
@@ -3,7 +3,7 @@ layout: default
 title: Bitcoin P2P e-cash paper
 grand_parent: Emails
 parent: Cryptography Mailing List
-nav_order: 1
+nav_order: 4
 ---
 
 # Bitcoin P2P e-cash paper