diff --git a/README.md b/README.md
index e03d0f98..a2b8acd2 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,9 @@ Easier to use: Just grab MinerU Desktop. No coding, no login, just a simple inte
 </div>
 
 # Changelog
+- 2025/04/29 1.3.10 Released
+  - Support for custom formula delimiters can be achieved by modifying the `latex-delimiter-config` item in the `magic-pdf.json` file under the user directory.
+  - Pinned `pdfminer.six` to version `20250324` to prevent parsing failures caused by new versions.
 - 2025/04/27 1.3.9 Released  
   - Optimized the formula parsing function to improve the success rate of formula rendering  
   - Updated `pdfminer.six` to the latest version, fixing some abnormal PDF parsing issues
diff --git a/README_zh-CN.md b/README_zh-CN.md
index ea710050..41d3715e 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -47,6 +47,9 @@
 </div>
 
 # 更新记录
+- 2025/04/29 1.3.10 发布
+  - 支持使用自定义公式标识符，可通过修改用户目录下的magic-pdf.json文件中的`latex-delimiter-config`项实现。
+  - 锁定`pdfminer.six`至`20250324`版本，以避免新版本导致的解析失败问题。
 - 2025/04/27 1.3.9 发布
   - 优化公式解析功能，提升公式渲染的成功率
   - 更新`pdfminer.six`到最新版本，修复了部分pdf解析异常问题
diff --git a/magic_pdf/model/sub_modules/model_utils.py b/magic_pdf/model/sub_modules/model_utils.py
index a47d6364..1ef02239 100644
--- a/magic_pdf/model/sub_modules/model_utils.py
+++ b/magic_pdf/model/sub_modules/model_utils.py
@@ -172,8 +172,8 @@ def filter_nested_tables(table_res_list, overlap_threshold=0.8, area_threshold=0
         tables_inside = [j for j in range(len(table_res_list))
                          if i != j and is_inside(table_info[j], table_info[i], overlap_threshold)]
 
-        # Continue if there are at least 2 tables inside
-        if len(tables_inside) >= 2:
+        # Continue if there are at least 3 tables inside
+        if len(tables_inside) >= 3:
             # Check if inside tables overlap with each other
             tables_overlap = any(do_overlap(table_info[tables_inside[idx1]], table_info[tables_inside[idx2]])
                                  for idx1 in range(len(tables_inside))