diff --git a/outline/docker-compose.yaml b/outline/docker-compose.yaml
index d4b6148..9a9743d 100644
--- a/outline/docker-compose.yaml
+++ b/outline/docker-compose.yaml
@@ -74,7 +74,7 @@ services:
       - SMTP_PASSWORD=${SMTP_PASSWORD}
       - SMTP_FROM_EMAIL=konskaya@za.loopa.site
       - SMTP_REPLY_EMAIL=konskaya@za.loopa.site
-      - SMTP_TLS_CIPHERS=TLSv1.2
+      - SMTP_TLS_CIPHERS=TLSv1.3
     # ports:
     #   443:443
     networks: