diff --git a/Changelog b/Changelog
index 59fd22b..787aec2 100644
--- a/Changelog
+++ b/Changelog
@@ -6,6 +6,9 @@ Mozilla's Universal Charset Detector C/C++ library
 2021/05/14 KST
 	- fixed #14 can't detect short euc-kr
 
+2021/05/13 KST
+	- fixed #18 SECURITY! Invalid memory approach (heap-use-after-free) (@gaoxiang-ut)
+
 2019/08/01 KST
 	- fixed #13 bom member has been added to the DetectObj structure
 	- fixed #15 support automake style 'make check'
diff --git a/libchardet.spec.in b/libchardet.spec.in
index b17dc63..ec48b4f 100644
--- a/libchardet.spec.in
+++ b/libchardet.spec.in
@@ -66,5 +66,5 @@ for developing programs which use the libchardet libraries.
 %{_mandir}/ko/man3/*
 
 %changelog
-* @PACKAGE_DATE@ JoungKyun.Kim <http://oops.org> 1:@PACKAGE_VERSION@-1
+* @PACKAGE_DATE@ JoungKyun.Kim <hostmaster@oops.org> 1:@PACKAGE_VERSION@-1
 - packaged @PACKAGE_VERSION@