diff --git a/docs/chapter_hashing/hash_collision.md b/docs/chapter_hashing/hash_collision.md
index b42a8817c..7ae3a6453 100644
--- a/docs/chapter_hashing/hash_collision.md
+++ b/docs/chapter_hashing/hash_collision.md
@@ -2174,7 +2174,7 @@ comments: true
                 // 若遇到指定 key ，则返回对应 val
                 if (
                     this.#buckets[j].key === key &&
-                    this.#buckets[j][key] !== this.#removed.key
+                    this.#buckets[j].key !== this.#removed.key
                 )
                     return this.#buckets[j].val;
             }
@@ -2195,7 +2195,7 @@ comments: true
                 // 若遇到空桶、或带有删除标记的桶，则将键值对放入该桶
                 if (
                     this.#buckets[j] === null ||
-                    this.#buckets[j][key] === this.#removed.key
+                    this.#buckets[j].key === this.#removed.key
                 ) {
                     this.#buckets[j] = new Pair(key, val);
                     this.#size += 1;
@@ -2302,7 +2302,7 @@ comments: true
                 // 若遇到指定 key ，则返回对应 val
                 if (
                     this.#buckets[j].key === key &&
-                    this.#buckets[j][key] !== this.#removed.key
+                    this.#buckets[j].key !== this.#removed.key
                 )
                     return this.#buckets[j].val;
             }
@@ -2323,7 +2323,7 @@ comments: true
                 // 若遇到空桶、或带有删除标记的桶，则将键值对放入该桶
                 if (
                     this.#buckets[j] === null ||
-                    this.#buckets[j][key] === this.#removed.key
+                    this.#buckets[j].key === this.#removed.key
                 ) {
                     this.#buckets[j] = new Pair(key, val);
                     this.#size += 1;
diff --git a/docs/index.md b/docs/index.md
index 0e040d068..14d8b9cd3 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -22,7 +22,7 @@ hide:
   </a>
   &nbsp;
   <a href="https://github.com/krahets/hello-algo">
-    <img alt="GitHub contributors" src="https://img.shields.io/github/contributors-anon/krahets/hello-algo?style=social&logo=handshake&logoColor=%23101010">
+    <img alt="GitHub contributors" src="https://img.shields.io/github/contributors-anon/krahets/hello-algo?style=social&logo=git&logoColor=%23101010">
   </a>
 </p>