diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..393eb92
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,41 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "07:00"
+      timezone: "Asia/Tokyo"
+    assignees:
+      - "hi-se"
+    commit-message:
+      prefix: "chore(gha)"
+  - package-ecosystem: "devcontainers"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "07:00"
+      timezone: "Asia/Tokyo"
+    assignees:
+      - "hi-se"
+    commit-message:
+      prefix: "chore(devcontainers)"
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "07:00"
+      timezone: "Asia/Tokyo"
+    assignees:
+      - "hi-se"
+    commit-message:
+      prefix: "chore(deps)"
+      prefix-development: "chore(dev-deps)"
+    groups:
+      dependencies:
+        dependency-type: "production"
+      dev-dependencies:
+        dependency-type: "development"