diff --git a/built/index.js b/built/index.js
index 31414fb..9d0905d 100644
--- a/built/index.js
+++ b/built/index.js
@@ -130,7 +130,8 @@ async function proxyHandler(request, reply) {
         else if ('badge' in request.query) {
             const mask = (await sharpBmp(file.path, file.mime))
                 .resize(96, 96, {
-                fit: 'inside',
+                fit: 'contain',
+                position: 'centre',
                 withoutEnlargement: false,
             })
                 .greyscale()
diff --git a/package.json b/package.json
index 71dcc82..e9b5f30 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "misskey-media-proxy",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "description": "The Media Proxy for Misskey",
   "main": "built/index.js",
   "packageManager": "pnpm@7.28.0",
diff --git a/src/index.ts b/src/index.ts
index 265fbc0..2e360bf 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -174,7 +174,8 @@ async function proxyHandler(request: FastifyRequest<{ Params: { url: string; };
         } else if ('badge' in request.query) {
             const mask = (await sharpBmp(file.path, file.mime))
                 .resize(96, 96, {
-                    fit: 'inside',
+                    fit: 'contain',
+                    position: 'centre',
                     withoutEnlargement: false,
                 })
                 .greyscale()