diff --git a/README.md b/README.md
index c0c3037..96f0d04 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ todo
 - Generate RSA private and public key (TODO)
 - Digital Signature with RSA private and public key using PSS (TODO)
 - Symmetric encryption with AES (GCM, CBC)✔️
-- Message authentication code with HMAC (TODO)
+- Message authentication code with HMAC ✔️
 - Generate Hash with Common DIGEST Algorithm ✔️
 
 #### Example