diff --git a/laws-modules/src/main/java/com/jero/modules/activiti/controller/ModelerController.java b/laws-modules/src/main/java/com/jero/modules/activiti/controller/ModelerController.java
index ada2f006..45e84350 100644
--- a/laws-modules/src/main/java/com/jero/modules/activiti/controller/ModelerController.java
+++ b/laws-modules/src/main/java/com/jero/modules/activiti/controller/ModelerController.java
@@ -90,8 +90,8 @@ public class ModelerController {
         Process mainProcess = bpmnModel.getMainProcess();
         String modelKey = mainProcess.getId();
         ModelQuery modelQuery = repositoryService.createModelQuery();
-        List<Model> list = modelQuery.modelKey(modelKey).list();
-        int version = list.size() + 1;
+        List<Model> list = modelQuery.latestVersion().modelKey(modelKey).list();
+        int version = list.size()>0 ? list.get(0).getVersion() + 1 : 1;
         ObjectNode modelNode = objectMapper.createObjectNode();
         modelNode.put(ModelDataJsonConstants.MODEL_NAME, name);
         modelNode.put(ModelDataJsonConstants.MODEL_REVISION, version);