diff --git a/ChangeLog.md b/ChangeLog.md
index 578bf164..677124e9 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -45,6 +45,7 @@
     *   #288: Incorrect message is displayed when `File.open` failed.
     *   #289: `File.setFiledate` does not work correctly.
     *   #293: Fixed a problem of a stack overflow with `=~` or `!~`.
+    *   #301: Fixed the prblem of using `ctx` after cleanup.
 
 ## V1.0.0 (Official Release) - 2021/03/16
 This is 1st official release version.