Question about "Cannot find module '@slack/webhook'" Error

[jy836979]

Hello! According to the instructions on the npm page for nestjs-slack-webhook, it says to install the package with npm install nestjs-slack-webhook. However, when I run my application afterward, I encounter the following error:
Error: Cannot find module '@slack/webhook'
I found that installing @slack/webhook separately (i.e., npm install @slack/webhook) fixes the issue. Is this the expected behavior? I’m wondering if there is any problem or missing dependency configuration in the package. Any insight would be appreciated!

Thank you in advance.