diff --git a/pom.xml b/pom.xml
index ca9a601c..ac7ce4a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -116,7 +116,7 @@
             <dependency>
                 <groupId>org.ehcache</groupId>
                 <artifactId>ehcache</artifactId>
-                <version>3.8.1</version>
+                <version>3.9.9</version>
             </dependency>
             <dependency>
                 <groupId>org.projectlombok</groupId>
diff --git a/update.md b/update.md
index 5ff096f3..feb96f07 100644
--- a/update.md
+++ b/update.md
@@ -1,5 +1,6 @@
 # 3.1.0
 * 支持jdk17,去除cglib&asm依赖，改成重新拷贝一份 [Issue #2240](https://github.com/alibaba/easyexcel/issues/2240)
+* 升级ehcache 到 3.9.9 ,为了兼容jdk17
 * 在有样式没有数据的情况下也算空行 [Issue #2294](https://github.com/alibaba/easyexcel/issues/2294)
 * 修复无法根据文件流判断csv的bug [Issue #2297](https://github.com/alibaba/easyexcel/issues/2297)
 * 修复CSV不关闭流的bug [Issue #2309](https://github.com/alibaba/easyexcel/issues/2309)