diff --git a/docs/internals.md b/docs/internals.md
index e07cdc1..0585da7 100644
--- a/docs/internals.md
+++ b/docs/internals.md
@@ -55,3 +55,9 @@ use either newest or any specific version of PHP:
 
 Use [ComposerRequireChecker](https://github.com/maglnet/ComposerRequireChecker) to detect transitive
 [Composer](https://getcomposer.org/) dependencies.
+
+To run the checker, execute the following command:
+
+```shell
+./vendor/bin/composer-require-checker
+```