diff --git a/src/content/contributions/2019-02-18-shiftbrain-interface.yml b/src/content/contributions/2019-02-18-shiftbrain-interface.yml
index 1db83fb..9e50310 100644
--- a/src/content/contributions/2019-02-18-shiftbrain-interface.yml
+++ b/src/content/contributions/2019-02-18-shiftbrain-interface.yml
@@ -1,5 +1,5 @@
 title: 'ユーザー自身の道具になるためのインターフェイス'
 pubDate: 2019-02-18
 link: 'https://yuheiy.github.io/interface-to-become-your-own-tool/'
-channel: '登壇'
+channel: '講演'
 channelDetail: '社内発表'
diff --git a/src/content/contributions/2019-03-08-html-for-creators.yml b/src/content/contributions/2019-03-08-html-for-creators.yml
index 648525c..42dcc90 100644
--- a/src/content/contributions/2019-03-08-html-for-creators.yml
+++ b/src/content/contributions/2019-03-08-html-for-creators.yml
@@ -1,5 +1,5 @@
 title: '制作者のためのHTML'
 pubDate: 2019-03-08
 link: 'https://yuheiy.github.io/html-for-creators/'
-channel: '登壇'
+channel: '講演'
 channelDetail: '<a href="https://ca11y.connpass.com/event/120003/">CA11Y #1 〜アクセシビリティはじめて物語〜</a>'
diff --git a/src/content/contributions/2019-09-10-meanings-of-the-alternative.yml b/src/content/contributions/2019-09-10-meanings-of-the-alternative.yml
index b785add..47202b3 100644
--- a/src/content/contributions/2019-09-10-meanings-of-the-alternative.yml
+++ b/src/content/contributions/2019-09-10-meanings-of-the-alternative.yml
@@ -1,5 +1,5 @@
 title: '「代替」の意味を探して'
 pubDate: 2019-09-10
 link: 'https://yuheiy.github.io/meanings-of-the-alternative/'
-channel: '登壇'
+channel: '講演'
 channelDetail: '社内発表'
diff --git a/src/content/contributions/2019-12-16-shiftbrain-layout-primitives.yml b/src/content/contributions/2019-12-16-shiftbrain-layout-primitives.yml
index 2d1ea5e..5b080af 100644
--- a/src/content/contributions/2019-12-16-shiftbrain-layout-primitives.yml
+++ b/src/content/contributions/2019-12-16-shiftbrain-layout-primitives.yml
@@ -1,5 +1,5 @@
 title: 'レイアウトプリミティブ'
 pubDate: 2019-12-16
 link: 'https://standard.shiftbrain.com/blog/layout-primitives'
-channel: '登壇'
+channel: '講演'
 channelDetail: '<a href="https://dist.connpass.com/event/155593/">DIST.30「一歩差がつくCSSテクニック」</a>'
diff --git a/src/content/contributions/2022-05-27-body-typography.yml b/src/content/contributions/2022-05-27-body-typography.yml
index a743666..04265f1 100644
--- a/src/content/contributions/2022-05-27-body-typography.yml
+++ b/src/content/contributions/2022-05-27-body-typography.yml
@@ -1,5 +1,5 @@
 title: '本文のタイポグラフィとCSS'
 pubDate: 2022-05-27
 link: 'https://paper.dropbox.com/doc/CSS-wPD007Sd9dSeEDLP78jri'
-channel: '登壇'
+channel: '講演'
 channelDetail: '社内発表'
diff --git a/src/content/contributions/2023-11-02-cssnite-link-in-link.yml b/src/content/contributions/2023-11-02-cssnite-link-in-link.yml
index b89a4c4..dbce51c 100644
--- a/src/content/contributions/2023-11-02-cssnite-link-in-link.yml
+++ b/src/content/contributions/2023-11-02-cssnite-link-in-link.yml
@@ -1,5 +1,5 @@
 title: '「リンクの中にあるリンク」「ボタンの中にあるボタン」を正しく実装する'
 pubDate: 2023-11-02
 link: 'https://cssnite.doorkeeper.jp/events/163736'
-channel: '登壇'
+channel: '講演'
 channelDetail: 'CSS Nite「#朝までマークアップ」'
diff --git a/src/content/contributions/2023-12-16-next-web-conf.yml b/src/content/contributions/2023-12-16-next-web-conf.yml
index c0531cc..459ba41 100644
--- a/src/content/contributions/2023-12-16-next-web-conf.yml
+++ b/src/content/contributions/2023-12-16-next-web-conf.yml
@@ -1,5 +1,5 @@
 title: '次世代Webカンファレンス 2023: CSS Session'
 pubDate: 2023-12-16
 link: 'https://nextwebconf.connpass.com/event/300174/'
-channel: '登壇'
+channel: '講演'
 channelDetail: '次世代Webカンファレンス 2023'
diff --git a/src/content/contributions/2024-11-06-no-npm-packages.yml b/src/content/contributions/2024-11-06-no-npm-packages.yml
index c530adc..039ef08 100644
--- a/src/content/contributions/2024-11-06-no-npm-packages.yml
+++ b/src/content/contributions/2024-11-06-no-npm-packages.yml
@@ -1,5 +1,5 @@
 title: 'npmパッケージじゃない仕組みで共有ライブラリを管理する'
 pubDate: 2024-11-06
 link: 'https://plaidtech.connpass.com/event/328629/'
-channel: '登壇'
+channel: '講演'
 channelDetail: 'Webフロントエンドを軸に、幅を広げたエンジニアたちの仕事'