diff --git a/CHANGELOG.md b/CHANGELOG.md
index 622e2264..53cbae71 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 * [#448](https://github.com/slack-ruby/slack-ruby-client/pull/448), [#453](https://github.com/slack-ruby/slack-ruby-client/pull/453): Automatically convert more Web API arguments to JSON-encoded strings - [@jmanian](https://github.com/jmanian).
 * [#465](https://github.com/slack-ruby-client/pulls/465): Update API from [slack-api-ref@878be8f](https://github.com/slack-ruby/slack-api-ref/commit/878be8f) - [@slack-ruby-ci-bot](https://github.com/apps/slack-ruby-ci-bot).
 * [#473](https://github.com/slack-ruby-client/pulls/473): Update API from [slack-api-ref@a29b520](https://github.com/slack-ruby/slack-api-ref/commit/a29b520) - [@slack-ruby-ci-bot](https://github.com/apps/slack-ruby-ci-bot).
+* [#474](https://github.com/slack-ruby-client/pulls/474): Update API from [slack-api-ref@629967e](https://github.com/slack-ruby/slack-api-ref/commit/629967e) - [@slack-ruby-ci-bot](https://github.com/apps/slack-ruby-ci-bot).
 * Your contribution here.
 
 ### 2.1.0 (2023/03/17)
diff --git a/bin/commands/admin_apps_requests.rb b/bin/commands/admin_apps_requests.rb
index baa72af4..e51c6db0 100644
--- a/bin/commands/admin_apps_requests.rb
+++ b/bin/commands/admin_apps_requests.rb
@@ -20,6 +20,7 @@ class App
         g.desc 'List app requests for a team/workspace.'
         g.long_desc %( List app requests for a team/workspace. )
         g.command 'list' do |c|
+          c.flag 'certified', desc: 'Limit the results to only include certified apps. When false, no certified apps will appear in the result.'
           c.flag 'cursor', desc: 'Set cursor to next_cursor returned by the previous call to list items in the next page.'
           c.flag 'enterprise_id', desc: '.'
           c.flag 'limit', desc: 'The maximum number of items to return. Must be between 1 - 1000 both inclusive.'
diff --git a/lib/slack/web/api/endpoints/admin_apps_requests.rb b/lib/slack/web/api/endpoints/admin_apps_requests.rb
index 551de869..20a7173c 100644
--- a/lib/slack/web/api/endpoints/admin_apps_requests.rb
+++ b/lib/slack/web/api/endpoints/admin_apps_requests.rb
@@ -25,6 +25,8 @@ def admin_apps_requests_cancel(options = {})
           #
           # List app requests for a team/workspace.
           #
+          # @option options [boolean] :certified
+          #   Limit the results to only include certified apps. When false, no certified apps will appear in the result.
           # @option options [string] :cursor
           #   Set cursor to next_cursor returned by the previous call to list items in the next page.
           # @option options [Object] :enterprise_id
diff --git a/lib/slack/web/api/slack-api-ref b/lib/slack/web/api/slack-api-ref
index 629967ec..977dad5c 160000
--- a/lib/slack/web/api/slack-api-ref
+++ b/lib/slack/web/api/slack-api-ref
@@ -1 +1 @@
-Subproject commit 629967ec8d46a6fb460d88ce9b5edc3b51f0288f
+Subproject commit 977dad5cf4c1e3973f31d6352acf485539f90a04