diff --git a/ChangeLog.md b/ChangeLog.md
index bf5be046..baef7a37 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -4,7 +4,7 @@ RELEASE NOTES for Perl version of Sisimai
 - download: "https://metacpan.org/pod/Sisimai"
 - document: "https://libsisimai.org/"
 
-v5.0.3p3
+v5.0.3p4
 ---------------------------------------------------------------------------------------------------
 - release: ""
 - version: ""
@@ -36,6 +36,7 @@ v5.0.3p3
       `AuthFailure`, `BadReputation`, `RequirePTR`, and other error reasons added at v5
     - No longer needed method `Sisimai::Rhost->match' has been removed
   - #339 #530 Add 8 sample emails generated by OpenSMTPD 6.8.0p2
+  - #331 #532 Add 9 sample emails generated by notqmail 1.08
 
 v5.0.3
 ---------------------------------------------------------------------------------------------------