diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..2a225d6
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,19 @@
+name: Lint
+on: push
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Setup Perl
+        uses: shogo82148/actions-setup-perl@v1
+        with:
+          perl-version: '5.34'
+          install-modules-with: cpanm
+      - name: Lint files
+        run: |
+          perl -MO=Lint *.pm
+          perl -MO=Lint *.pl
+          perl -MO=Lint lessons/*.pm
+