diff --git a/shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/ScaleRuleServiceImpl.java b/shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/ScaleRuleServiceImpl.java
index 57a66e5928a6..f8b0fe8ca617 100644
--- a/shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/ScaleRuleServiceImpl.java
+++ b/shenyu-admin/src/main/java/org/apache/shenyu/admin/service/impl/ScaleRuleServiceImpl.java
@@ -123,7 +123,7 @@ public int create(final ScaleRuleDTO scaleRuleDTO) {
     @Override
     public int update(final ScaleRuleDTO scaleRuleDTO) {
         final ScaleRuleDO after = ScaleRuleDO.buildScaleRuleDO(scaleRuleDTO);
-        int rows = scaleRuleMapper.updateByPrimaryKey(after);
+        int rows = scaleRuleMapper.updateByPrimaryKeySelective(after);
         if (rows > 0) {
             scaleRuleCache.addOrUpdateRuleToCache(ScaleRuleDO.buildScaleRuleDO(scaleRuleDTO));
         }