1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 4e2e28b..4255066 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 trying out the challenges from [cryptopals.com][cp].
 
-finished set 1, 2, and 3.
+finished set 1, 2, 3 and 4.
 
 [cp]: https://cryptopals.com