diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e53b94d91..6676b6717 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -12,7 +12,7 @@ repos:
     - id: debug-statements
     - id: mixed-line-ending
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.14.14
+    rev: v0.15.0
     hooks:
       - id: ruff-check
       - id: ruff-format
diff --git a/package/PartSeg/_roi_mask/batch_proceed.py b/package/PartSeg/_roi_mask/batch_proceed.py
index ee4b8c1f0..7eca23ad1 100644
--- a/package/PartSeg/_roi_mask/batch_proceed.py
+++ b/package/PartSeg/_roi_mask/batch_proceed.py
@@ -35,7 +35,7 @@ class BatchProceed(QThread):
     def __init__(self):
         super().__init__()
         self.queue = Queue()
-        self.algorithm = Optional[None]
+        self.algorithm = None
         self.parameters = None
         self.file_list = []
         self.index = 0