diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index a8d8f70c..62e56315 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -39,4 +39,6 @@ jobs:
       - name: check changed *.channels.xml
         if: steps.files.outputs.channels_any_changed == 'true'
         run: |
-          npm run channels:lint -- ${{ steps.files.outputs.channels_all_changed_files }}
\ No newline at end of file
+          npm run channels:lint -- ${{ steps.files.outputs.channels_all_changed_files }}
+          npm run postinstall
+          npm run channels:validate -- ${{ steps.files.outputs.channels_all_changed_files }}
\ No newline at end of file