diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index 86946d29254f32dc190b8924536ec252ee464445..63e3958b164c2a6f37de33ac3891d3cfc3d33dd6 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -1535,7 +1535,7 @@ Disallow: /
 ```
 
 To block just specific pages, it's necessary to use a more complex syntax. Learn
-it on the [official documentation](http://www.robotstxt.org/robotstxt.html).
+it on the [official documentation](https://www.robotstxt.org/robotstxt.html).
 
 Evented File System Monitor
 ---------------------------
diff --git a/railties/lib/rails/generators/rails/app/templates/public/robots.txt b/railties/lib/rails/generators/rails/app/templates/public/robots.txt
index 37b576a4a015ac63021a1121d55a96235ec03525..c19f78ab6836efd56c42aa56457d58871d9e2782 100644
--- a/railties/lib/rails/generators/rails/app/templates/public/robots.txt
+++ b/railties/lib/rails/generators/rails/app/templates/public/robots.txt
@@ -1 +1 @@
-# See http://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file