diff --git a/nixos/Caddyfile b/nixos/Caddyfile
index 76e45e6..ef9e4cd 100644
--- a/nixos/Caddyfile
+++ b/nixos/Caddyfile
@@ -1,7 +1,7 @@
-{
-    auto_https off
-}
-
-http://mainframe.philippeterson.com:9482 {
+webdav.philippeterson.com:9482 {
     respond "Hello, world!"
+
+    tls /var/lib/acme/webdav.philippeterson.com/cert.pem /var/lib/acme/webdav.philippeterson.com/key.pem {
+      protocols tls1.3
+    }
 }