diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
new file mode 100644
index 00000000..d5895911
--- /dev/null
+++ b/.github/workflows/shellcheck.yml
@@ -0,0 +1,30 @@
+name: shellcheck
+
+on:
+  pull_request:
+    paths:
+      - '**.sh'
+
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: changed shell scripts
+        id: changed-files
+        uses: tj-actions/changed-files@v39
+        with:
+          files_yaml: |
+            shell:
+              - '**.sh'
+
+      - name: run shellcheck for all changed shell scripts
+        if: steps.changed-files.outputs.shell_any_changed == 'true'
+        run: |
+          # https://github.com/rhysd/actionlint/issues/355
+          # shellcheck disable=SC2043
+          for file in ${{ steps.changed-files.outputs.shell_all_changed_files }}; do
+            echo "$file was changed"
+            shellcheck "$file"
+          done
diff --git a/test-2.sh b/test-2.sh
new file mode 100644
index 00000000..54c88f6a
--- /dev/null
+++ b/test-2.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo "test-2"
diff --git a/test.sh b/test.sh
new file mode 100644
index 00000000..6e7fbe24
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo "test"