diff --git a/src/main/java/neatlogic/module/change/dao/mapper/ChangeMapper.xml b/src/main/java/neatlogic/module/change/dao/mapper/ChangeMapper.xml
index 3d454bf79d9ea89c5f2e104de608de3a45bdae8b..f8cf1e26298b521ed7af25b74dbce47d656dc899 100644
--- a/src/main/java/neatlogic/module/change/dao/mapper/ChangeMapper.xml
+++ b/src/main/java/neatlogic/module/change/dao/mapper/ChangeMapper.xml
@@ -354,7 +354,7 @@
         VALUES (#{processTaskId},
                 #{processTaskStepId},
                 #{changeId},
-                #{config})
+                #{config, typeHandler=CompressHandler})
     </insert>
     <insert id="insertIgnoreProcessTaskStepChangeHandle"
             parameterType="neatlogic.framework.change.dto.ProcessTaskStepChangeVo">
@@ -601,7 +601,7 @@
 
     <update id="updateChangeConfigByChangeId">
         UPDATE `processtask_step_change_create`
-        SET `config` = #{config}
+        SET `config` = #{config, typeHandler=CompressHandler}
         WHERE `change_id` = #{changeId}
     </update>