diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index a0a04b135fe3a8aefc09381e5d5ffb33f4e5d737..201f0258cb1c7bb3b17eea137c1f0cb789d85a9b 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,6 +3,10 @@ Unreleased changes
 
 Version 0
 ---------
+0.23.0 / 2021-07-03
+~~~~~~~~~~~~~~~~~~~
+* ``km3io.acoustics`` was added which provides ``RawAcousticsReader`` to
+  read -- wait for it -- raw acoustics data
 
 0.22.0 / 2021-06-15
 ~~~~~~~~~~~~~~~~~~~