diff --git a/ops-server/src/main/java/cd/casic/server/controller/StageController.java b/ops-server/src/main/java/cd/casic/server/controller/StageController.java
index 40fde48..6735a92 100644
--- a/ops-server/src/main/java/cd/casic/server/controller/StageController.java
+++ b/ops-server/src/main/java/cd/casic/server/controller/StageController.java
@@ -10,7 +10,6 @@ import jakarta.annotation.security.PermitAll;
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotNull;
 
-import org.assertj.core.util.Lists;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;