diff --git a/packages/frontend/src/components/MkNotification.vue b/packages/frontend/src/components/MkNotification.vue
index fd96aa433..6b47f9c34 100644
--- a/packages/frontend/src/components/MkNotification.vue
+++ b/packages/frontend/src/components/MkNotification.vue
@@ -9,8 +9,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<MkAvatar v-if="notification.type === 'pollEnded'" :class="$style.icon" :user="notification.note.user" link preview/>
 		<MkAvatar v-else-if="notification.type === 'note'" :class="$style.icon" :user="notification.note.user" link preview/>
 		<MkAvatar v-else-if="notification.type === 'achievementEarned'" :class="$style.icon" :user="$i" link preview/>
-		<div v-else-if="notification.type === 'reaction:grouped'" :class="[$style.icon, $style.icon_reactionGroup]"><i class="ti ti-plus" style="line-height: 1;"></i></div>
-		<div v-else-if="notification.type === 'renote:grouped'" :class="[$style.icon, $style.icon_renoteGroup]"><i class="ti ti-repeat" style="line-height: 1;"></i></div>
+		<div v-else-if="notification.type === 'reaction:grouped'" :class="[$style.icon, $style.icon_reactionGroup]"><i class="ph-plus ph-bold ph-lg" style="line-height: 1;"></i></div>
+		<div v-else-if="notification.type === 'renote:grouped'" :class="[$style.icon, $style.icon_renoteGroup]"><i class="ph-repeat ph-bold ph-lg" style="line-height: 1;"></i></div>
 		<img v-else-if="notification.type === 'test'" :class="$style.icon" :src="infoImageUrl"/>
 		<MkAvatar v-else-if="notification.user" :class="$style.icon" :user="notification.user" link preview/>
 		<img v-else-if="notification.icon" :class="[$style.icon, $style.icon_app]" :src="notification.icon" alt=""/>
diff --git a/packages/frontend/src/components/global/MkEmoji.vue b/packages/frontend/src/components/global/MkEmoji.vue
index 0855f20b8..7fa3ce75a 100644
--- a/packages/frontend/src/components/global/MkEmoji.vue
+++ b/packages/frontend/src/components/global/MkEmoji.vue
@@ -46,14 +46,14 @@ function onClick(ev: MouseEvent) {
 			text: props.emoji,
 		}, {
 			text: i18n.ts.copy,
-			icon: 'ti ti-copy',
+			icon: 'ph-copy ph-bold ph-lg',
 			action: () => {
 				copyToClipboard(props.emoji);
 				os.success();
 			},
 		}, ...(props.menuReaction && react ? [{
 			text: i18n.ts.doReaction,
-			icon: 'ti ti-plus',
+			icon: 'ph-plus ph-bold ph-lg',
 			action: () => {
 				react(props.emoji);
 			},
diff --git a/packages/frontend/src/ui/_common_/common.ts b/packages/frontend/src/ui/_common_/common.ts
index 82a1c28a7..9baf5861d 100644
--- a/packages/frontend/src/ui/_common_/common.ts
+++ b/packages/frontend/src/ui/_common_/common.ts
@@ -105,7 +105,7 @@ export function openInstanceMenu(ev: MouseEvent) {
 		},
 	}, ($i) ? {
 		text: i18n.ts._initialTutorial.launchTutorial,
-		icon: 'ti ti-presentation',
+		icon: 'ph-presentation ph-bold ph-lg',
 		action: () => {
 			os.popup(defineAsyncComponent(() => import('@/components/MkTutorialDialog.vue')), {}, {}, 'closed');
 		},