diff --git a/.github/workflows/build-ruby.yml b/.github/workflows/build-ruby.yml
index bf1c8d5..cf214a9 100644
--- a/.github/workflows/build-ruby.yml
+++ b/.github/workflows/build-ruby.yml
@@ -6,6 +6,15 @@ jobs:
   build:
     runs-on: self-hosted
     steps:
+      - uses: actions/checkout@v1
+      - name: Setup Perl
+        uses: shogo82148/actions-setup-perl@v1
+        with:
+          perl-version: '5.30'
+      - name: perl -V
+        run: perl -V
+      - run: cpanm --installdeps .
+      - run: prove -lv t
       - name: Set ruby
         id: ruby
         run: |