diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index dfc4c84a..c4164af1 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -7,4 +7,4 @@ fair place to play.
 
 [The full community guidelines can be found on the Sass website.][link]
 
-[link]: http://sass-lang.com/community-guidelines
+[link]: https://sass-lang.com/community-guidelines
diff --git a/README.md b/README.md
index 9ea9e914..a1ba5d6d 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ implementation of Sass, which runs somewhat slower than the other options listed
 here. But it has the same interface, so it'll be easy to swap in another
 implementation later if you need a bit more speed!
 
-See [the Sass website](http://sass-lang.com/install) for more ways to install
+See [the Sass website](https://sass-lang.com/install) for more ways to install
 Sass.
 
 Once you have Sass installed, you can run the `sass` executable to compile
@@ -73,7 +73,7 @@ sass source/stylesheets/index.scss build/stylesheets/index.css
 
 ## Learn Sass
 
-Check out [the Sass website](http://sass-lang.com/guide) for a guide on how to
+Check out [the Sass website](https://sass-lang.com/guide) for a guide on how to
 learn Sass!
 
 ## This Repository
diff --git a/accepted/color-4-rgb-hsl.md b/accepted/color-4-rgb-hsl.md
index 47accc6f..a8cd8328 100644
--- a/accepted/color-4-rgb-hsl.md
+++ b/accepted/color-4-rgb-hsl.md
@@ -26,7 +26,7 @@ syntax using [the normal rules][] for distinguishing between division and `/`,
 so `rgb(179 115 153 / 50%)` will return a 50%-opacity color but
 `rgb(179 115 $blue / 50%)` will not.
 
-[the normal rules]: http://sass-lang.com/documentation/file.SASS_REFERENCE.html#division-and-slash
+[the normal rules]: https://sass-lang.com/documentation/file.SASS_REFERENCE.html#division-and-slash
 
 Color Level 4 redefines `rgba()` and `hsla()` as pure aliases for `rgb()` and
 `hsl()`, which also means that `rgb()` and `hsl()` support the old syntax for