diff --git a/content/en/admin/upgrading.md b/content/en/admin/upgrading.md
index a0148941..296f3e4f 100644
--- a/content/en/admin/upgrading.md
+++ b/content/en/admin/upgrading.md
@@ -16,7 +16,7 @@ Since v4.2.0, Mastodon will automatically check for available updates and notify
 
 This happens by fetching `https://api.joinmastodon.org/update-check?version=<current_version>` in the background every 30 minutes. `current_version` omits the build metadata (everything after the first `+`, if there is one, in the version string). For instance, if your version is `4.3.0-beta2+my-fork`, Mastodon will query `https://api.joinmastodon.org/update-check?version=4.3.0-beta2`.
 
-You can change which URL Mastodon queries by setting the `UPDATE_CHECK_URL` environment variable. You can also completely disable this behavior by setting this environment variable to an empty string.
+You can change which URL Mastodon queries by setting the `UPDATE_CHECK_URL` environment variable. You can also completely disable this behavior by setting this environment variable to an empty string, although we strongly recommend against doing that unless you are keeping up with Mastodon updates in another way, as Mastodon occasionally releases critical security updates that must be applied in a timely fashion.
 
 ### Upgrade steps