diff --git a/_sass/_screenshot.scss b/_sass/_screenshot.scss
index e21dce8..c1721ed 100644
--- a/_sass/_screenshot.scss
+++ b/_sass/_screenshot.scss
@@ -1,8 +1,8 @@
 // スクリーンショット
 .screenshot {
   background: $screenshot-background;
-  max-height: 300px;
-  max-width: 600px;
+  max-height: 250px;
+  max-width: 500px;
 
   img {
     object-fit: contain;