diff --git a/astro/public/assets/image/icon/bluesky.png b/astro/public/assets/image/icon/bluesky.png
deleted file mode 100644
index a5ca7eed1..000000000
Binary files a/astro/public/assets/image/icon/bluesky.png and /dev/null differ
diff --git a/astro/public/assets/image/icon/bluesky.svg b/astro/public/assets/image/icon/bluesky.svg
new file mode 100644
index 000000000..b4bf10cce
--- /dev/null
+++ b/astro/public/assets/image/icon/bluesky.svg
@@ -0,0 +1,33 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="512.000000pt" height="512.000000pt" viewBox="0 0 512.000000 512.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.14, written by Peter Selinger 2001-2017
+</metadata>
+<g transform="translate(0.000000,512.000000) scale(0.100000,-0.100000)"
+fill="#1185FE" stroke="none">
+<path d="M390 4706 c-136 -38 -201 -106 -247 -261 -25 -85 -24 -350 1 -645 2
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diff --git a/astro/src/pages/info.astro b/astro/src/pages/info.astro
index 2a26e9e47..f1a9846f7 100644
--- a/astro/src/pages/info.astro
+++ b/astro/src/pages/info.astro
@@ -58,7 +58,7 @@ const structuredData: StructuredData = {
 				<LinkExternal href="https://fedibird.com/@SaekiTominaga">Mastodon</LinkExternal>
 			</li>
 			<li>
-				<img src="/assets/image/icon/bluesky.png" alt="" class="c-link-icon" width="16" height="16" />
+				<img src="/assets/image/icon/bluesky.svg" alt="" class="c-link-icon" width="16" height="16" />
 				<LinkExternal href="https://bsky.app/profile/w0s.jp" icon={false}>Bluesky</LinkExternal>
 			</li>
 			<li>