diff --git a/public/locales/en/doc.json b/public/locales/en/doc.json
index ba47dab..0ad9fe6 100644
--- a/public/locales/en/doc.json
+++ b/public/locales/en/doc.json
@@ -31,10 +31,10 @@
     },
     "tutorial": {
       "groupTitle": "Tutorial",
-      "chapter1": "①: Solana Setup",
-      "chapter2": "②: Backup & Migrate",
-      "chapter3": "③: Cloud & Monitor",
-      "chapter4": "④: Revenue Analysis"
+      "chapter1": "1. Solana Setup",
+      "chapter2": "2. Backup & Migrate",
+      "chapter3": "3. Cloud & Monitor",
+      "chapter4": "4. Revenue Analysis"
     }
   },
   "headerNav": {
diff --git a/public/locales/ja/doc.json b/public/locales/ja/doc.json
index 8c320fa..e81d7f0 100644
--- a/public/locales/ja/doc.json
+++ b/public/locales/ja/doc.json
@@ -31,10 +31,10 @@
     },
     "tutorial": {
       "groupTitle": "チュートリアル",
-      "chapter1": "①: Solanaバリデーター設定",
-      "chapter2": "②: バックアップと移転",
-      "chapter3": "③: クラウドとSolana監視",
-      "chapter4": "④: 収益管理と分析"
+      "chapter1": "1. Solanaバリデーター設定",
+      "chapter2": "2. バックアップと移転",
+      "chapter3": "3. クラウドとSolana監視",
+      "chapter4": "4. 収益管理と分析"
     }
   },
   "headerNav": {