diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/controller/FlwInstanceController.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/controller/FlwInstanceController.java
index f85b8ff0a..ae99c16fa 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/controller/FlwInstanceController.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/controller/FlwInstanceController.java
@@ -138,7 +138,7 @@ public class FlwInstanceController extends BaseController {
      * @param instanceId 流程实例id
      */
     @GetMapping("/instanceVariable/{instanceId}")
-    public R<Map<String, Object>> instanceVariable(@PathVariable String instanceId) {
+    public R<Map<String, Object>> instanceVariable(@PathVariable Long instanceId) {
         return R.ok(flwInstanceService.instanceVariable(instanceId));
     }