diff --git a/workflow-engine-api/src/main/java/cn/axzo/workflow/client/feign/bpmn/ProcessInstanceApi.java b/workflow-engine-api/src/main/java/cn/axzo/workflow/client/feign/bpmn/ProcessInstanceApi.java
index 05135e3b5..1396a3828 100644
--- a/workflow-engine-api/src/main/java/cn/axzo/workflow/client/feign/bpmn/ProcessInstanceApi.java
+++ b/workflow-engine-api/src/main/java/cn/axzo/workflow/client/feign/bpmn/ProcessInstanceApi.java
@@ -1,6 +1,10 @@
 package cn.axzo.workflow.client.feign.bpmn;
 
-import cn.axzo.workflow.common.model.request.bpmn.process.*;
+import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceCancelDTO;
+import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceCreateDTO;
+import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceCreateWithFormDTO;
+import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceMyPageReqVO;
+import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceQueryDTO;
 import cn.axzo.workflow.common.model.response.BpmPageResult;
 import cn.axzo.workflow.common.model.response.bpmn.process.BpmnProcessInstancePageItemVO;
 import cn.axzo.workflow.common.model.response.bpmn.process.BpmnProcessInstanceVO;
@@ -9,8 +13,14 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import io.swagger.v3.oas.annotations.Operation;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.validation.annotation.Validated;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestParam;
 
+import javax.annotation.Nullable;
 import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
 
@@ -83,6 +93,6 @@ public interface ProcessInstanceApi {
 
     @GetMapping("/api/process/instance/graphical")
     CommonResponse<ObjectNode> processInstanceGraphical(@NotBlank(message = "流程实例 ID 不能为空") @RequestParam String processInstanceId,
-                                                        @NotBlank(message = "租户不能为空") @RequestParam String tenantId);
+                                                        @Nullable @RequestParam(required = false) String tenantId);
 
 }