diff --git a/pom.xml b/pom.xml
index 880393a..e991381 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
     </parent>
     <groupId>top.yunshu</groupId>
     <artifactId>shw_server</artifactId>
-    <version>1.7.3-RELEASE</version>
+    <version>1.7.4-RELEASE</version>
     <name>shw_server</name>
     <description>Student HomeWork Management System</description>
 
diff --git a/src/main/java/top/yunshu/shw/server/service/group/impl/GroupServiceImpl.java b/src/main/java/top/yunshu/shw/server/service/group/impl/GroupServiceImpl.java
index c21615c..7312969 100644
--- a/src/main/java/top/yunshu/shw/server/service/group/impl/GroupServiceImpl.java
+++ b/src/main/java/top/yunshu/shw/server/service/group/impl/GroupServiceImpl.java
@@ -165,7 +165,8 @@ public void deleteGroup(String id, String teacherNumber) {
             @CacheEvict(cacheNames = "groupOfTeacher", key = "'regex:'+#teacherNumber+'*'"),
             @CacheEvict(cacheNames = "findGroupNameByGroupId", key = "#id"),
             @CacheEvict(cacheNames = "studentDoneWork", allEntries = true),
-            @CacheEvict(cacheNames = "studentUndoneWork", allEntries = true)
+            @CacheEvict(cacheNames = "studentUndoneWork", allEntries = true),
+            @CacheEvict(cacheNames = "work", key = "'regex:'+#teacherNumber+'*'")
     })
     @Override
     public Group updateGroup(String id, String name, String teacherNumber) {