diff --git a/src/main/java/xyz/playedu/api/listener/UserCourseHourRecordDestroyListener.java b/src/main/java/xyz/playedu/api/listener/UserCourseHourRecordDestroyListener.java
index 4eba267..f3ce656 100644
--- a/src/main/java/xyz/playedu/api/listener/UserCourseHourRecordDestroyListener.java
+++ b/src/main/java/xyz/playedu/api/listener/UserCourseHourRecordDestroyListener.java
@@ -21,7 +21,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Component;
 
-import xyz.playedu.api.domain.UserCourseRecord;
 import xyz.playedu.api.event.UserCourseHourRecordDestroyEvent;
 import xyz.playedu.api.service.UserCourseRecordService;
 
@@ -38,14 +37,6 @@ public class UserCourseHourRecordDestroyListener {
 
     @EventListener
     public void updateUserCourseRecord(UserCourseHourRecordDestroyEvent e) {
-        UserCourseRecord record = userCourseRecordService.find(e.getUserId(), e.getCourseId());
-        if (record == null) {
-            return;
-        }
-        userCourseRecordService.storeOrUpdate(
-                record.getUserId(),
-                record.getCourseId(),
-                record.getHourCount(),
-                record.getFinishedCount() - 1);
+        userCourseRecordService.decrease(e.getUserId(), e.getCourseId(), 1);
     }
 }
diff --git a/src/main/java/xyz/playedu/api/service/UserCourseRecordService.java b/src/main/java/xyz/playedu/api/service/UserCourseRecordService.java
index a3f1adb..ed2e702 100644
--- a/src/main/java/xyz/playedu/api/service/UserCourseRecordService.java
+++ b/src/main/java/xyz/playedu/api/service/UserCourseRecordService.java
@@ -48,4 +48,6 @@ public interface UserCourseRecordService extends IService<UserCourseRecord> {
     void removeByCourseId(Integer courseId);
 
     List<UserCourseRecord> chunks(List<Integer> ids, List<String> fields);
+
+    void decrease(Integer userId, Integer courseId, int count);
 }
diff --git a/src/main/java/xyz/playedu/api/service/impl/UserCourseRecordServiceImpl.java b/src/main/java/xyz/playedu/api/service/impl/UserCourseRecordServiceImpl.java
index fdb8cce..b1b9c0f 100644
--- a/src/main/java/xyz/playedu/api/service/impl/UserCourseRecordServiceImpl.java
+++ b/src/main/java/xyz/playedu/api/service/impl/UserCourseRecordServiceImpl.java
@@ -137,4 +137,23 @@ public class UserCourseRecordServiceImpl
     public void destroy(Integer userId, Integer courseId) {
         remove(query().getWrapper().in("user_id", userId).eq("course_id", courseId));
     }
+
+    @Override
+    public void decrease(Integer userId, Integer courseId, int count) {
+        UserCourseRecord record = find(userId, courseId);
+        if (record == null) {
+            return;
+        }
+
+        int finishedCount = record.getFinishedCount() - count;
+
+        UserCourseRecord newRecord = new UserCourseRecord();
+        newRecord.setId(record.getId());
+        newRecord.setFinishedCount(finishedCount);
+        newRecord.setFinishedAt(null);
+        newRecord.setProgress(finishedCount * 100 / record.getHourCount());
+        newRecord.setIsFinished(0);
+
+        updateById(newRecord);
+    }
 }