diff --git a/js/tests/README.md b/js/tests/README.md
index 1e2b5d8688..e3ddde78c7 100644
--- a/js/tests/README.md
+++ b/js/tests/README.md
@@ -22,7 +22,7 @@ To run the unit test suite via [Karma](https://karma-runner.github.io/) and debu
 - Each test should be in the corresponding `describe`.
 - Each test should test only one unit per test, although one test can include several assertions. Create multiple tests for multiple units of functionality.
 - Each test should use [`expect`](https://jasmine.github.io/api/edge/matchers.html) to ensure something is expected.
-- Each test should follow the project's [JavaScript Code Guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md#js)
+- Each test should follow the project's [JavaScript Code Guidelines](https://github.com/twbs/bootstrap/blob/master/.github/CONTRIBUTING.md#js)
 
 ## Code coverage
 
diff --git a/site/content/docs/5.0/customize/optimize.md b/site/content/docs/5.0/customize/optimize.md
index a6a306109f..646c0e6e48 100644
--- a/site/content/docs/5.0/customize/optimize.md
+++ b/site/content/docs/5.0/customize/optimize.md
@@ -44,7 +44,7 @@ _Help wanted with this section, please consider opening a PR. Thanks!_
 While we don't have a prebuilt example for using [PurgeCSS](https://github.com/FullHuman/purgecss) with Bootstrap, there are some helpful articles and walkthroughs that the community has written. Here are some options:
 
 - <https://medium.com/dwarves-foundation/remove-unused-css-styles-from-bootstrap-using-purgecss-88395a2c5772>
-- <https://lukencode.com/2018/07/29/automatically-removeunused-css-from-bootstrap-or-other-frameworks/>
+- <https://lukelowrey.com/automatically-removeunused-css-from-bootstrap-or-other-frameworks/>
 
 Lastly, this [CSS Tricks article on unused CSS](https://css-tricks.com/how-do-you-remove-unused-css-from-a-site/) shows how to use PurgeCSS and other similar tools.