diff --git a/4 Tree/8-堆/pq-1.jpg b/4 Tree/8-堆/pq-1.jpg
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diff --git a/4 Tree/8-堆/堆.md b/4 Tree/8-堆/堆.md
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+++ b/4 Tree/8-堆/堆.md	
@@ -16,7 +16,7 @@
 
 比如小根堆存储示例
 
-![小根堆](./pq-1.png)
+![小根堆](./pq-1.jpg)