diff --git a/src/client/app/auth/assets/icon.svg b/src/client/app/auth/assets/icon.svg
new file mode 100644
index 0000000000..36f5d3e404
--- /dev/null
+++ b/src/client/app/auth/assets/icon.svg
@@ -0,0 +1 @@
+<?xml version="1.0" standalone="no"?><!-- Generator: Gravit.io --><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="isolation:isolate" viewBox="0 0 512 512" width="512" height="512"><defs><clipPath id="_clipPath_P6eAE2OaBltOJ3gHGVajfqsOnfv4xIns"><rect width="512" height="512"/></clipPath></defs><g clip-path="url(#_clipPath_P6eAE2OaBltOJ3gHGVajfqsOnfv4xIns)"><clipPath id="_clipPath_P6q7MZAUp3XpQhVgs2GuAbegX9v4gkom"><rect x="0" y="0" width="512" height="512" transform="matrix(1,0,0,1,0,0)" fill="rgb(255,255,255)"/></clipPath><g clip-path="url(#_clipPath_P6q7MZAUp3XpQhVgs2GuAbegX9v4gkom)"><g id="Group"><g id="g4502"><g id="g5125"><g id="text4489"><path d=" M 190.093 359.243 C 167.923 359.32 148.881 345.963 139.9 330.409 C 135.104 323.615 125.617 321.198 125.482 330.409 L 125.482 372.939 C 125.482 390.026 119.253 404.799 106.794 417.258 C 94.69 429.362 79.917 435.413 62.474 435.413 C 45.387 435.413 30.614 429.362 18.155 417.258 C 6.052 404.799 0 390.026 0 372.939 L 0 139.061 C 0 125.89 3.738 113.965 11.213 103.285 C 19.045 92.25 29.012 84.596 41.116 80.325 C 47.879 77.833 54.999 76.587 62.474 76.587 C 81.697 76.587 97.716 84.062 110.531 99.013 C 117.295 106.489 121.211 110.405 122.279 110.761 C 122.279 110.761 173.043 172.145 174.467 173.213 C 175.891 174.281 180.073 182.446 190.093 182.446 C 200.112 182.446 204.829 174.281 206.253 173.213 C 207.676 172.145 258.44 110.761 258.44 110.761 C 258.796 111.117 262.534 107.201 269.654 99.013 C 282.825 84.062 299.022 76.587 318.245 76.587 C 325.364 76.587 332.484 77.833 339.603 80.325 C 351.707 84.596 361.496 92.25 368.972 103.285 C 376.803 113.965 380.719 125.89 380.719 139.061 L 380.719 372.939 C 380.719 390.026 374.489 404.799 362.03 417.258 C 349.927 429.362 335.154 435.413 317.711 435.413 C 300.624 435.413 285.851 429.362 273.391 417.258 C 261.288 404.799 255.237 390.026 255.237 372.939 L 255.237 330.409 C 254.184 318.802 243.925 326.116 240.285 330.409 C 230.674 348.208 212.262 359.167 190.093 359.243 Z  M 457.535 184.448 Q 435.109 184.448 419.09 168.963 Q 403.605 152.944 403.605 130.518 Q 403.605 108.091 419.09 92.606 Q 435.109 76.587 457.535 76.587 Q 479.962 76.587 495.981 92.606 Q 512 108.091 512 130.518 Q 512 152.944 495.981 168.963 Q 479.962 184.448 457.535 184.448 Z  M 458.069 195.128 Q 480.496 195.128 495.981 211.147 Q 512 227.166 512 249.592 L 512 381.482 Q 512 403.909 495.981 419.928 Q 480.496 435.413 458.069 435.413 Q 435.643 435.413 419.624 419.928 Q 403.605 403.909 403.605 381.482 L 403.605 249.592 Q 403.605 227.166 419.624 211.147 Q 435.643 195.128 458.069 195.128 Z " fill-rule="evenodd" fill="rgb(157,157,157)"/></g></g></g></g></g></g></svg>
\ No newline at end of file
diff --git a/src/client/app/auth/assets/logo.svg b/src/client/app/auth/assets/logo.svg
deleted file mode 100644
index 19b8a2737e..0000000000
--- a/src/client/app/auth/assets/logo.svg
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px"
-	 y="0px" width="1024px" height="512px" viewBox="0 256 1024 512" enable-background="new 0 256 1024 512" xml:space="preserve">
-<polyline opacity="0.5" fill="none" stroke="#000000" stroke-width="34" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="
-	896.5,608.5 800.5,416.5 704.5,608.5 608.5,416.5 512.5,608.5 416.5,416.5 320.5,608.5 224.5,416.5 128.5,608.5 "/>
-</svg>
diff --git a/src/client/app/auth/views/index.vue b/src/client/app/auth/views/index.vue
index b9c7cf7c2b..6d0ba3cda3 100644
--- a/src/client/app/auth/views/index.vue
+++ b/src/client/app/auth/views/index.vue
@@ -27,7 +27,7 @@
 		<h1>サインインしてください</h1>
 		<mk-signin/>
 	</main>
-	<footer><img src="/assets/auth/logo.svg" alt="Misskey"/></footer>
+	<footer><img src="/assets/auth/icon.svg" alt="Misskey"/></footer>
 </div>
 </template>
 
@@ -144,8 +144,8 @@ export default Vue.extend({
 	> footer
 		> img
 			display block
-			width 64px
-			height 64px
-			margin 0 auto
+			width 32px
+			height 32px
+			margin 16px auto
 
 </style>