diff --git a/action.yaml b/action.yaml
index ce86c1e..daa83f6 100644
--- a/action.yaml
+++ b/action.yaml
@@ -8,5 +8,7 @@ inputs:
     description: 'Who to greet'
     required: true
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
+  using: 'composite'
+  steps:
+    - name: 'Call Another Action'
+      uses: kengo-k/docker-build/internal@main
diff --git a/internal/action.yaml b/internal/action.yaml
new file mode 100644
index 0000000..879b5bc
--- /dev/null
+++ b/internal/action.yaml
@@ -0,0 +1,8 @@
+name: 'Publish Docker images'
+description: 'Dockerfileに変更があった場合イメージをビルドしてGHCRにPUSHする'
+
+runs:
+  using: 'composite'
+  steps:
+  - name: Display Hello
+    run: echo "hello"