diff --git a/.github/workflows/use-action-macos.yaml b/.github/workflows/use-action-macos.yaml
new file mode 100644
index 0000000..06a0129
--- /dev/null
+++ b/.github/workflows/use-action-macos.yaml
@@ -0,0 +1,35 @@
+name: Use Action (macOS)
+
+on:
+  push:
+    branches: ['main']
+
+jobs:
+  use-action:
+    name: Use Action
+    runs-on: macos-latest
+    steps:
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+      - uses: actions/checkout@v2
+
+      # Minimal publish
+      - uses: imjasonh/setup-ko@main
+      - run: ko publish --bare ./
+
+      # Install an old release.
+      - uses: imjasonh/setup-ko@main
+        with:
+          version: v0.8.0
+      - name: Check installed version
+        run: ko version | grep 0.8.0
+
+      # Install from tip
+      - uses: imjasonh/setup-ko@v0.1
+        with:
+          version: tip
+      - name: Check installed version (tip)
+        run: |
+          sudo rm /usr/local/bin/ko # Uninstall previous versions.
+          ko version
diff --git a/.github/workflows/use-action.yaml b/.github/workflows/use-action.yaml
index 3a9879d..b81be84 100644
--- a/.github/workflows/use-action.yaml
+++ b/.github/workflows/use-action.yaml
@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v2
 
       # Minimal publish
-      - uses: imjasonh/setup-ko@main
+      - uses: imjasonh/setup-ko@v0.1
       - run: ko publish --bare ./
 
       # Install an old release.