diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/FlowNextNodeBo.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/FlowNextNodeBo.java
index 385eb892..12f0653e 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/FlowNextNodeBo.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/FlowNextNodeBo.java
@@ -21,7 +21,7 @@ public class FlowNextNodeBo implements Serializable {
     /**
      * 任务id
      */
-    private String taskId;
+    private Long taskId;
 
     /**
      * 流程变量
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
index d1de14e6..6ee59850 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
@@ -578,7 +578,7 @@ public class FlwTaskServiceImpl implements IFlwTaskService {
      */
     @Override
     public List<FlowNode> getNextNodeList(FlowNextNodeBo bo) {
-        String taskId = bo.getTaskId();
+        Long taskId = bo.getTaskId();
         Map<String, Object> variables = bo.getVariables();
         Task task = taskService.getById(taskId);
         Instance instance = insService.getById(task.getInstanceId());