diff --git a/.github/workflows/validate-github-actions-workflows.yml b/.github/workflows/validate-github-actions-workflows.yml
new file mode 100644
index 000000000..bd0fc58f8
--- /dev/null
+++ b/.github/workflows/validate-github-actions-workflows.yml
@@ -0,0 +1,18 @@
+name: validate GitHub Actions workflows
+on:
+  push:
+    paths:
+      - .github/workflows/*
+
+  pull_request:
+    paths:
+      - .github/workflows/*
+
+jobs:
+  validate-github-actions-workflows:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: |
+          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
+          ./actionlint