diff --git a/.gitignore b/.gitignore
index 5766c574..8a5e07f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,7 +14,7 @@ target
 db.sqlite
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here http://doc.crates.io/guide.html#cargotoml-vs-cargolock
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
 Cargo.lock
 
 # The upload script, for now.
diff --git a/README.md b/README.md
index 8c3db519..7be3b6af 100644
--- a/README.md
+++ b/README.md
@@ -159,7 +159,7 @@ Apache License, Version 2.0, without any additional terms or conditions.
 
 Rocket is licensed under either of the following, at your option:
 
- * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
- * MIT License ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
+ * MIT License ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
 
 The Rocket website source is licensed under [separate terms](site#license).
diff --git a/examples/todo/static/css/skeleton.css b/examples/todo/static/css/skeleton.css
index 4855df48..cdc432a4 100644
--- a/examples/todo/static/css/skeleton.css
+++ b/examples/todo/static/css/skeleton.css
@@ -3,7 +3,7 @@
 * Copyright 2014, Dave Gamache
 * www.getskeleton.com
 * Free to use under the MIT license.
-* http://www.opensource.org/licenses/mit-license.php
+* https://opensource.org/licenses/mit-license.php
 * 12/29/2014
 */
 
diff --git a/site/guide/0-introduction.md b/site/guide/0-introduction.md
index f8879ca8..2ab42d81 100644
--- a/site/guide/0-introduction.md
+++ b/site/guide/0-introduction.md
@@ -1,10 +1,10 @@
 # Introduction
 
 Rocket is a web framework for Rust. If you'd like, you can think of Rocket as
-being a more flexible, friendly medley of [Rails](http://rubyonrails.org),
-[Flask](http://flask.pocoo.org/),
-[Bottle](http://bottlepy.org/docs/dev/index.html), and
-[Yesod](http://www.yesodweb.com/). We prefer to think of Rocket as something
+being a more flexible, friendly medley of [Rails](https://rubyonrails.org/),
+[Flask](https://palletsprojects.com/p/flask/),
+[Bottle](https://bottlepy.org/docs/dev/index.html), and
+[Yesod](https://www.yesodweb.com/). We prefer to think of Rocket as something
 new. Rocket aims to be fast, easy, and flexible while offering guaranteed safety
 and security where it can. Importantly, Rocket also aims to be _fun_, and it
 accomplishes this by ensuring that you write as little code as needed to
diff --git a/site/guide/6-state.md b/site/guide/6-state.md
index 931a927d..c2ea5aad 100644
--- a/site/guide/6-state.md
+++ b/site/guide/6-state.md
@@ -239,15 +239,15 @@ Presently, Rocket provides built-in support for the following databases:
 [`r2d2`]: https://crates.io/crates/r2d2
 [Diesel]: https://diesel.rs
 [`rusqlite::Connection`]: https://docs.rs/rusqlite/0.23.0/rusqlite/struct.Connection.html
-[`diesel::SqliteConnection`]: http://docs.diesel.rs/diesel/prelude/struct.SqliteConnection.html
+[`diesel::SqliteConnection`]: https://docs.diesel.rs/diesel/prelude/struct.SqliteConnection.html
 [`postgres::Client`]: https://docs.rs/postgres/0.17/postgres/struct.Client.html
-[`diesel::PgConnection`]: http://docs.diesel.rs/diesel/pg/struct.PgConnection.html
+[`diesel::PgConnection`]: https://docs.diesel.rs/diesel/pg/struct.PgConnection.html
 [`mysql::Conn`]: https://docs.rs/mysql/18/mysql/struct.Conn.html
-[`diesel::MysqlConnection`]: http://docs.diesel.rs/diesel/mysql/struct.MysqlConnection.html
+[`diesel::MysqlConnection`]: https://docs.diesel.rs/diesel/mysql/struct.MysqlConnection.html
 [`Rusqlite`]: https://github.com/jgallagher/rusqlite
 [Rust-Postgres]: https://github.com/sfackler/rust-postgres
 [`rust-mysql-simple`]: https://github.com/blackbeam/rust-mysql-simple
-[`diesel::PgConnection`]: http://docs.diesel.rs/diesel/pg/struct.PgConnection.html
+[`diesel::PgConnection`]: https://docs.diesel.rs/diesel/pg/struct.PgConnection.html
 [`memcache`]: https://github.com/aisk/rust-memcache
 [`memcache::Client`]: https://docs.rs/memcache/0.15/memcache/struct.Client.html