diff --git a/README.md b/README.md
index 6ceee2211d3..85bcfff9a63 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,12 @@ Retrieve all changed files relative to the default branch (`pull_request*` event
     *   Report on files that have at least one change.
     *   [Regex pattern](https://www.gnu.org/software/grep/manual/grep.html#Regular-Expressions) matching on a subset of files.
 
+## Supported Platforms
+- [`ubuntu-*`](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on)
+- [`macos-*`](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on)
+- [`windows-*`](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on)
+
+
 ## Usage
 
 > NOTE: :warning: