diff --git a/app/javascript/mastodon/locales/ja.json b/app/javascript/mastodon/locales/ja.json
index ee836a98669cd4b151b4e52337f27cfd0a561f42..3af536fdde158e944b318fd47cf1671fe0a55d03 100644
--- a/app/javascript/mastodon/locales/ja.json
+++ b/app/javascript/mastodon/locales/ja.json
@@ -142,7 +142,7 @@
   "status.load_more": "もっと見る",
   "status.media_hidden": "非表示のメデイア",
   "status.mention": "返信",
-  "status.mute_conversation": "Mute conversation",
+  "status.mute_conversation": "会話をミュート",
   "status.open": "詳細を表示",
   "status.reblog": "ブースト",
   "status.reblogged_by": "{name} さんにブーストされました",
@@ -153,7 +153,7 @@
   "status.sensitive_warning": "閲覧注意",
   "status.show_less": "隠す",
   "status.show_more": "もっと見る",
-  "status.unmute_conversation": "Unmute conversation",
+  "status.unmute_conversation": "会話のミュートを解除",
   "tabs_bar.compose": "投稿",
   "tabs_bar.federated_timeline": "連合",
   "tabs_bar.home": "ホーム",