diff --git a/README.md b/README.md
index 96676be3..0740d4b8 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ PolyWeather is a weather analysis tool built for prediction markets like **Polym
 </p>
 
 <p align="center">
-  <img src="docs/images/demo_map.png" alt="PolyWeather Web Map" width="600">
+  <img src="./docs/images/demo_map.png" alt="PolyWeather Web Map" width="800">
   <br>
   <em>🗺️ Interactive Web Map: Real-time global monitoring with rich data visualization</em>
 </p>
diff --git a/README_ZH.md b/README_ZH.md
index c0d943f5..2aba6b6e 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -14,7 +14,7 @@ PolyWeather 是一款专为 **Polymarket** 等预测市场打造的天气分析
 </p>
 
 <p align="center">
-  <img src="docs/images/demo_map.png" alt="PolyWeather Web Map" width="600">
+  <img src="./docs/images/demo_map.png" alt="PolyWeather Web Map" width="800">
   <br>
   <em>🗺️ 交互式网页地图：全球城市实时监控与丰富的数据可视化可视化</em>
 </p>