diff --git a/apps/knowledge/migrations/0004_alter_document_type_alter_knowledge_type_and_more.py b/apps/knowledge/migrations/0004_alter_document_type_alter_knowledge_type_and_more.py
index 374aa4e38..a10c39f36 100644
--- a/apps/knowledge/migrations/0004_alter_document_type_alter_knowledge_type_and_more.py
+++ b/apps/knowledge/migrations/0004_alter_document_type_alter_knowledge_type_and_more.py
@@ -53,7 +53,6 @@ class Migration(migrations.Migration):
             ],
             options={
                 'db_table': 'knowledge_workflow_version',
-                'unique_together': {('knowledge',)},
             },
         ),
     ]
diff --git a/apps/knowledge/models/knowledge.py b/apps/knowledge/models/knowledge.py
index 4f88f21f2..50b64b766 100644
--- a/apps/knowledge/models/knowledge.py
+++ b/apps/knowledge/models/knowledge.py
@@ -167,7 +167,6 @@ class KnowledgeWorkflowVersion(AppModelMixin):
 
     class Meta:
         db_table = "knowledge_workflow_version"
-        unique_together = [['knowledge']]  # 同一知识库的版本号唯一
 
 
 def get_default_status():