diff --git a/sidebars.js b/sidebars.js
index 99b9b735..522d541e 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -130,16 +130,6 @@ const sidebars = {
               id: 'how-to-write-function',
               label: 'Write a Function',
             },
-            {
-              type: 'doc',
-              id: 'use-generic-contracts',
-              label: 'Use Generic Contracts',
-            },
-            {
-              type: 'doc',
-              id: 'use-table-oriented-generic-contracts',
-              label: 'Use Table-Oriented Generic Contracts',
-            },
           ],
         },
         {
@@ -156,11 +146,6 @@ const sidebars = {
               id: 'how-to-write-applications',
               label: 'Write an Application in Java',
             },
-            {
-              type: 'doc',
-              id: 'how-to-write-applications-with-generic-contracts',
-              label: 'Write an Application with Generic Contracts',
-            },
           ]
         },
         {
@@ -246,11 +231,6 @@ const sidebars = {
               id: 'schema-loader',
               label: 'ScalarDL Schema Loader',
             },
-            {
-              type: 'doc',
-              id: 'generic-contracts-reference',
-              label: 'Generic Contracts',
-            },
             {
               type: 'doc',
               id: 'ca/caclient-getting-started',
@@ -745,16 +725,6 @@ const sidebars = {
               id: 'how-to-write-function',
               label: 'ファンクションを作成',
             },
-            {
-              type: 'doc',
-              id: 'use-generic-contracts',
-              label: '汎用コントラクトを使用',
-            },
-            {
-              type: 'doc',
-              id: 'use-table-oriented-generic-contracts',
-              label: 'テーブル指向汎用コントラクトの使用',
-            }
           ],
         },
         {
@@ -771,11 +741,6 @@ const sidebars = {
               id: 'how-to-write-applications',
               label: 'Java でアプリケーションを書く',
             },
-            {
-              type: 'doc',
-              id: 'how-to-write-applications-with-generic-contracts',
-              label: '汎用コントラクトを用いたアプリケーションを作成',
-            },
           ]
         },
         {
@@ -861,11 +826,6 @@ const sidebars = {
               id: 'schema-loader',
               label: 'ScalarDL Schema Loader',
             },
-            {
-              type: 'doc',
-              id: 'generic-contracts-reference',
-              label: '汎用コントラクト',
-            },
             {
               type: 'doc',
               id: 'ca/caclient-getting-started',