diff --git a/ChangeLog b/ChangeLog
index f105509..cec5dff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2021-02-26  Tatsuya Kinoshita  <tats@debian.org>
+
+	* Str.c: Fix potential overflow due to Str.c.
+
+	* Str.c: Fix integer overflow due to Strgrow.
+	Bug-Chromium: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31397
+
 2021-02-24  Tatsuya Kinoshita  <tats@debian.org>
 
 	* doc-jp/README.SSL: Simplify doc for SSL.