diff --git a/people/Dethelly/page.en.md b/people/Dethelly/page.en.md
index 2de0b289..31e3d37a 100644
--- a/people/Dethelly/page.en.md
+++ b/people/Dethelly/page.en.md
@@ -154,7 +154,7 @@ Her mother told A how diligent and excellent she was and how much they loved her
 Sugar's father said that Sugar was the brightest star in the sky.
 
 <PhotoScroll photos={[
-    '${path}/photos/photo1.jpg',
+    '${path}/photos/photo1.webp',
 ]} />
 
 However, everything went wrong.
diff --git a/people/Dethelly/page.md b/people/Dethelly/page.md
index 34f32f11..4ccdf56d 100644
--- a/people/Dethelly/page.md
+++ b/people/Dethelly/page.md
@@ -126,7 +126,7 @@ A 向糖的母亲表示如果可以希望将糖作为女儿下葬，但她是[
 糖的父亲说，她是天空中最亮的星星。
 
 <PhotoScroll photos={[
-    '${path}/photos/photo1.jpg',
+    '${path}/photos/photo1.webp',
 ]} />
 
 可惜一切都很不巧地错付，如果糖还活着，不知如今会如何呢……？
diff --git a/people/Dethelly/page.zh_hant.md b/people/Dethelly/page.zh_hant.md
index 0a3aacc6..ebb9895f 100644
--- a/people/Dethelly/page.zh_hant.md
+++ b/people/Dethelly/page.zh_hant.md
@@ -126,7 +126,7 @@ A 向糖的母親表示如果可以希望將糖作為女兒下葬，但她是[
 糖的父親說，她是天空中最亮的星星。
 
 <PhotoScroll photos={[
-    '${path}/photos/photo1.jpg',
+    '${path}/photos/photo1.webp',
 ]} />
 
 可惜一切都很不巧，終究還是謬愛了，如果糖還活著，不知如今會如何呢……？
diff --git a/people/Dethelly/photos/photo1.jpg b/people/Dethelly/photos/photo1.jpg
deleted file mode 100644
index bf99efe5..00000000
Binary files a/people/Dethelly/photos/photo1.jpg and /dev/null differ
diff --git a/people/Dethelly/photos/photo1.webp b/people/Dethelly/photos/photo1.webp
new file mode 100644
index 00000000..40b71e88
Binary files /dev/null and b/people/Dethelly/photos/photo1.webp differ