diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdd1ec6..7faa826 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## v4.0.4 – 2026-09-15
+## v4.0.5 – 2026-09-16
 
 - Fix average score grading, which treated a score of 0 as "no score" and excluded it from the average.
 - Fix the "Edit on eXeLearning and return to course" button, which failed to send the package back to Moodle.
@@ -8,6 +8,12 @@
 
 ---
 
+## v4.0.4
+
+- 404 Not Found. The requested release was not found in this project.
+
+---
+
 ## v4.0.3 – 2026-08-06
 
 - Maintenance release with no functional changes: version bumped to keep numbering aligned with eXeLearning for consistency across related projects.