diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f88e96dafa6..ced39af67e5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -295,8 +295,8 @@ Instances of abusive, harassing, or otherwise unacceptable behavior
 may be reported by opening an issue
 or contacting one or more of the project maintainers.
 
-This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0,
-available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/)
+This Code of Conduct is adapted from the [Contributor Covenant](https://contributor-covenant.org), version 1.2.0,
+available at [https://contributor-covenant.org/version/1/2/0/](https://contributor-covenant.org/version/1/2/0/)
 
 [gcloudcli]: https://developers.google.com/cloud/sdk/gcloud/
 [indvcla]: https://developers.google.com/open-source/cla/individual