diff --git a/docker/rootfs/etc/letsencrypt.ini b/docker/rootfs/etc/letsencrypt.ini
index 3565d6e..4949da0 100644
--- a/docker/rootfs/etc/letsencrypt.ini
+++ b/docker/rootfs/etc/letsencrypt.ini
@@ -2,3 +2,5 @@ text = True
 non-interactive = True
 authenticator = webroot
 webroot-path = /data/letsencrypt-acme-challenge
+key-type = ecdsa
+elliptic-curve = secp384r1