diff --git a/.github/dependabot.yml b/.github/dependabot.yml
deleted file mode 100644
index 71eb206..0000000
--- a/.github/dependabot.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-version: 2
-updates:
-- package-ecosystem: "gitsubmodule"
-  directory: "/"
-  schedule:
-    interval: "weekly"
-    time: "02:00"
-    timezone: "Asia/Tokyo"
-  reviewers:
-    - "ledyba-z"
-- package-ecosystem: "github-actions"
-  directory: "/"
-  schedule:
-    interval: "weekly"
-    time: "02:00"
-    timezone: Asia/Tokyo
-  reviewers:
-    - "ledyba-z"
diff --git a/README.md b/README.md
index bd7a2ca..ef6c089 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 # cavif
 
+**Currently maitained by [avif-community](https://github.com/avif-community/cavif)**
+
+**[avif-community](https://github.com/avif-community/cavif)でメンテナンスを継続しております**
+
 |         | Status |
 |--|---|
 | Linux | [![Build on Linux](https://github.com/link-u/cavif/workflows/Build%20on%20Linux/badge.svg) ](https://github.com/link-u/cavif/actions?query=workflow%3A%22Build+on+Linux%22) |