diff --git a/install.sh b/install.sh
index 60cd8aa..d4c7ac1 100644
--- a/install.sh
+++ b/install.sh
@@ -496,8 +496,7 @@ server {
     ssl_ciphers "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384";
     ssl_prefer_server_ciphers on;
 
-    # See https://hstspreload.org/ before uncommenting the line below.
-    # add_header Strict-Transport-Security "max-age=15768000; preload;";
+    add_header Strict-Transport-Security "max-age=15768000; preload;";
     add_header X-Content-Type-Options nosniff;
     add_header X-XSS-Protection "1; mode=block";
     add_header X-Robots-Tag none;
@@ -565,8 +564,7 @@ server {
     ssl_ciphers "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384";
     ssl_prefer_server_ciphers on;
 
-    # See https://hstspreload.org/ before uncommenting the line below.
-    # add_header Strict-Transport-Security "max-age=15768000; preload;";
+    add_header Strict-Transport-Security "max-age=15768000; preload;";
     add_header X-Content-Type-Options nosniff;
     add_header X-XSS-Protection "1; mode=block";
     add_header X-Robots-Tag none;