diff --git a/plugins/chat/app/models/chat/channel.rb b/plugins/chat/app/models/chat/channel.rb
index 652b12edf7b..d7d70697f69 100644
--- a/plugins/chat/app/models/chat/channel.rb
+++ b/plugins/chat/app/models/chat/channel.rb
@@ -296,7 +296,6 @@ end
 #  description                 :text
 #  status                      :integer          default("open"), not null
 #  user_count                  :integer          default(0), not null
-#  last_message_sent_at        :datetime         not null
 #  auto_join_users             :boolean          default(FALSE), not null
 #  user_count_stale            :boolean          default(FALSE), not null
 #  slug                        :string
diff --git a/plugins/chat/db/post_migrate/20240425133407_drop_chat_channels_last_message_sent_at.rb b/plugins/chat/db/post_migrate/20240425133407_drop_chat_channels_last_message_sent_at.rb
new file mode 100644
index 00000000000..0a3b61d6c98
--- /dev/null
+++ b/plugins/chat/db/post_migrate/20240425133407_drop_chat_channels_last_message_sent_at.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class DropChatChannelsLastMessageSentAt < ActiveRecord::Migration[7.0]
+  DROPPED_COLUMNS ||= { chat_channels: %i[last_message_sent_at] }
+
+  def up
+    DROPPED_COLUMNS.each { |table, columns| Migration::ColumnDropper.execute_drop(table, columns) }
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end