diff --git a/content/fundamentals/webserver.md b/content/fundamentals/webserver.md
index c4b1d1a..4c54738 100644
--- a/content/fundamentals/webserver.md
+++ b/content/fundamentals/webserver.md
@@ -183,7 +183,7 @@ HTTPS, which stands for *hypertext transfer protocol secure*, is an extension of
 
 As part of its bigger goal to "encrypt the entire Internet", the [Electronic Frontier Foundation](https://certbot.eff.org/about/) developed Certbot, a free and open source tool for automating the server-side deployment of [Let's Encrypt Certificates](https://letsencrypt.org/), thus enabling HTTPS.
 
-Let's get down to it! Again, these instructions are specific to Debian 9 (Stretch), but detailed instructions for installation on other distributions can be found on [Certbot's website](https://certbot.eff.org/instructions)
+Let's get down to it! Again, these instructions are specific to Debian stable (Buster), but detailed instructions for installation on other distributions can be found on [Certbot's website](https://certbot.eff.org/instructions)
 
 
 First, let's install Certbot: