diff --git a/README.md b/README.md
index 8a7345e9..b4e98806 100644
--- a/README.md
+++ b/README.md
@@ -50,10 +50,13 @@ cyrusauth:
 Character Encodings:
 * To get proper character encoding and charsets install ICU (`libicu4-dev`)
 
-I18N (UI translation)
+I18N (UI translation):
 * Boost.Locale
 * gettext is a build dependency
 
+Argon2 password hash:
+* libargon2
+
 ## Installing ZNC
 
 Installation from source code is performed using the CMake toolchain.