diff --git a/mkdocs.yml b/mkdocs.yml
index ed4bc8f..845ace4 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -93,8 +93,9 @@ nav:
       - 缓存击穿雪崩穿透: architecture/cache/cache-breakdown-avalanche-penetration.md
   - 算法:
     - algorithm/index.md
-    - 布隆过滤器: algorithm/bloom-filter.md
-    - 布隆过滤器删除问题: algorithm/bloom-filter-deletion.md
-    - 计数布隆过滤器: algorithm/counting-bloom-filter.md
-    - 布谷鸟过滤器: algorithm/cuckoo-filter.md
+    - 布隆过滤器:
+      - algorithm/bloom-filter.md
+      - 布隆过滤器删除问题: algorithm/bloom-filter-deletion.md
+      - 计数布隆过滤器: algorithm/counting-bloom-filter.md
+      - 布谷鸟过滤器: algorithm/cuckoo-filter.md
     - HeavyKeeper: algorithm/heavykeeper.md