diff --git a/ChangeLog.md b/ChangeLog.md
index bf8bf9a5..a1b764d1 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -3,7 +3,7 @@ XP Compiler ChangeLog
 
 ## ?.?.? / ????-??-??
 
-## 9.0.0 / ????-??-??
+## 9.0.0 / 2024-03-23
 
 * Merged PR #179: XP 12 compatibility, dropping PHP 7.0 - 7.3 support!
   (@thekid)