diff --git a/config.mjs b/config.mjs
index a0b6ce8..5e85c8d 100644
--- a/config.mjs
+++ b/config.mjs
@@ -34,7 +34,7 @@ let configs = {
         height: 900
     },
 
-    minImageNaturalWidth: 50,      //从<img>标签抓取封面图时的图片原始尺寸最小宽度
+    minImageNaturalWidth: 150,      //从<img>标签抓取封面图时的图片原始尺寸最小宽度
 
     //可选项参考官方文档：https://ulixee.org/docs/hero/basic-client/hero
     botOptions: {
diff --git a/lib/common.mjs b/lib/common.mjs
index a4a51e4..5dc966b 100644
--- a/lib/common.mjs
+++ b/lib/common.mjs
@@ -63,8 +63,6 @@ export default {
             imgType = 'webp';
         }else if (/\.gif/ig.test(url) || /image\/gif/ig.test(url)) {
             imgType = 'gif';
-        }else if (/\.svg/ig.test(url) || /image\/svg\+xml/ig.test(url)) {
-            imgType = 'svg+xml';
         }
 
         return imgType;