diff --git a/.github/workflows/check_pr.yml b/.github/workflows/check_pr.yml
index 0ced5ea..d3c7dd1 100644
--- a/.github/workflows/check_pr.yml
+++ b/.github/workflows/check_pr.yml
@@ -31,5 +31,6 @@ jobs:
         shell: bash
         run: |
           if git diff --exit-code "origin/${BASE_REF}" -- CHANGELOG.md; then
-              echo "::warning::No CHANGELOG.md modifications were found in this pull request."
-          fi
\ No newline at end of file
+              echo "::error::No CHANGELOG.md modifications were found in this pull request."
+              return -1;
+          fi