diff --git a/Containers/mastercontainer/acme.Caddyfile b/Containers/mastercontainer/acme.Caddyfile
index 3a6710c1..77d7df9e 100644
--- a/Containers/mastercontainer/acme.Caddyfile
+++ b/Containers/mastercontainer/acme.Caddyfile
@@ -34,6 +34,7 @@ http://:80 {
 
 https://:8443 {
     import headers.Caddyfile
+    header Strict-Transport-Security max-age=31536000;
 
 	@denied {
 		path /api/auth/login /api/auth/getlogin