diff --git a/photo_mask/__init__.py b/photo_mask/__init__.py
index 3cc237e..8bc400f 100644
--- a/photo_mask/__init__.py
+++ b/photo_mask/__init__.py
@@ -22,8 +22,7 @@ NAME_KEYS = [
     {"key": "购买方名称", "length": 4},
 ]
 ID_CARD_NUM_KEYS = [
-    {"key": "身份证", "length": 20},
-    {"key": "份证号", "length": 19},
+    {"key": "[身]?份证号", "length": 19},
 ]
 
 # 形近字，只对姓名涂抹生效