diff --git a/docs/en/ingest-management/fleet/air-gapped.asciidoc b/docs/en/ingest-management/fleet/air-gapped.asciidoc
index 1ef621323..92841c959 100644
--- a/docs/en/ingest-management/fleet/air-gapped.asciidoc
+++ b/docs/en/ingest-management/fleet/air-gapped.asciidoc
@@ -171,6 +171,8 @@ docker run -it -p 443:443 \
   docker.elastic.co/package-registry/distribution:{version}
 ----
 
+The {package-registry} supports TLS versions from 1.0 to 1.3. The minimum version accepted can be configured with `EPR_TLS_MIN_VERSION`, it defaults to 1.0. If you want to restrict the supported versions from 1.2 to 1.3, you can use `EPR_TLS_MIN_VERSION=1.2`.
+
 [discrete]
 === Using custom CA certificates