diff --git a/resource/tasks.json b/resource/tasks.json
index eb509c3b11..d62dd92e06 100644
--- a/resource/tasks.json
+++ b/resource/tasks.json
@@ -12536,7 +12536,7 @@
         ],
         "specificRect_Doc": "x拿来当文字灰度二值化下限用",
         "specificRect": [
-            100,
+            170,
             0,
             0,
             0