diff --git a/README.rst b/README.rst
index 42e646fe..d257ea1e 100644
--- a/README.rst
+++ b/README.rst
@@ -47,7 +47,8 @@ Features
 * `Format string syntax <https://fmt.dev/latest/syntax.html>`_ similar to Python's
   `format <https://docs.python.org/3/library/stdtypes.html#str.format>`_
 * Fast IEEE 754 floating-point formatter with correct rounding, shortness and
-  round-trip guarantees
+  round-trip guarantees using the `Dragonbox <https://github.com/jk-jeon/dragonbox>`_
+  algorithm
 * Safe `printf implementation
   <https://fmt.dev/latest/api.html#printf-formatting>`_ including the POSIX
   extension for positional arguments