diff --git a/.github/workflows/php-changes-detection.yml b/.github/workflows/php-changes-detection.yml
index ef2bfa7c0e6378..cb78663aa4f972 100644
--- a/.github/workflows/php-changes-detection.yml
+++ b/.github/workflows/php-changes-detection.yml
@@ -19,8 +19,10 @@ jobs:
               id: changed-files-php
               uses: tj-actions/changed-files@0874344d6ebbaa00a27da73276ae7162fadcaf69 # v44.3.0
               with:
-                  files: |
-                      **.php
+              files: |
+                  lib/**
+                  packages/**/*.php
+                  phpunit/**
 
             - name: List all changed files
               if: steps.changed-files-php.outputs.any_changed == 'true'