diff --git a/apache-mime4j.spec b/apache-mime4j.spec
index b2b84f441c87d91de086b34406bcb934aff9e054..016075cd16327009afe18e736a4a33c312f4b797 100644
--- a/apache-mime4j.spec
+++ b/apache-mime4j.spec
@@ -1,6 +1,6 @@
 Name:                apache-mime4j
 Version:             0.8.7
-Release:             3
+Release:             4
 Summary:             Apache JAMES Mime4j
 License:             Apache-2.0
 URL:                 http://james.apache.org/mime4j
@@ -38,7 +38,7 @@ for p in core dom storage; do
 done
 
 %build
-%ifarch riscv64
+%if "%{_arch}" == "riscv64"
 export JAVA_TOOL_OPTIONS="-Xmx4096m"
 %endif
 %mvn_build
@@ -54,6 +54,9 @@ export JAVA_TOOL_OPTIONS="-Xmx4096m"
 %license LICENSE NOTICE
 
 %changelog
+* Mon Mar 18 2024 zke_012020 <keer.oerv@isrc.iscas.ac.cn> - 0.8.7-4
+- Update spec for riscv64
+
 * Thu Feb 29 2024 yaoxin <yao_xin001@hoperun.com> - 0.8.7-3
 - Fix CVE-2024-21742