diff --git a/AUTHORS b/AUTHORS
index 80df4495..89d7fde1 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -16,6 +16,9 @@ GitHub handle are preferred. The repository history at
 https://github.com/alchemistry/alchemlyb and the CHANGES file show
 individual code contributions.
 
+New contributors should add themselves to the end of this file AND to
+the file CITATION.cff at the end of the top-level authors list.
+
 
 Chronological list of authors
 -----------------------------
diff --git a/CHANGES b/CHANGES
index 993ac8d8..3e401096 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,7 +12,15 @@ The rules for this file:
   * accompany each entry with github issue/PR number (Issue #xyz)
   * release numbers follow "Semantic Versioning" https://semver.org
 
-------------------------------------------------------------------------------
+--------------------------------------------------------------------------------
+09/??/2024 orbeckst
+
+  * 2.3.3
+
+Enhancements:
+  - add CITATION.cff file with all authors from AUTHORS (issue #394, PR #395)
+
+
 08/24/2024 xiki-tempula
 
   * 2.3.2