diff --git a/ChangeLog b/ChangeLog
index 39c45af..8292eb6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23,6 +23,7 @@
    * Added Thumb assembly optimizations
    * Added DEFLATE compression support as per RFC3749 (requires zlib)
    * Added blowfish algorithm (Generic and cipher layer)
+   * Added PKCS#5 PBKDF2 key derivation function
 
 Changes
    * Removed redundant POLARSSL_DEBUG_MSG define