diff --git a/.drone.yml b/.drone.yml
deleted file mode 100644
index 4a2a84c06d..0000000000
--- a/.drone.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-kind: pipeline
-name: fluentd-test-arm64-3-0
-
-platform:
-  os: linux
-  arch: arm64
-
-steps:
-- name: fluentd-test-arm64-3-0
-  image: arm64v8/ruby:3.0
-  commands:
-  - apt update
-  - apt -y install libgmp3-dev
-  - export BUNDLE_GEMFILE=$PWD/Gemfile
-  - gem update --system
-  - bundle install --jobs=3 --retry=3 --path=${BUNDLE_PATH:-vendor/bundle}
-  - bundle exec rake test
----
-kind: pipeline
-name: fluentd-test-arm64-2-7
-
-platform:
-  os: linux
-  arch: arm64
-
-steps:
-- name: fluentd-test-arm64-2-7
-  image: arm64v8/ruby:2.7
-  commands:
-  - apt update
-  - apt -y install libgmp3-dev
-  - export BUNDLE_GEMFILE=$PWD/Gemfile
-  - gem update --system
-  - bundle install --jobs=3 --retry=3 --path=${BUNDLE_PATH:-vendor/bundle}
-  - bundle exec rake test
diff --git a/README.md b/README.md
index bb4a6d8cd6..1ba79507a8 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,6 @@ Fluentd: Open-Source Log Collector
 [![Testing on Ubuntu](https://github.com/fluent/fluentd/actions/workflows/linux-test.yaml/badge.svg?branch=master)](https://github.com/fluent/fluentd/actions/workflows/linux-test.yaml)
 [![Testing on Windows](https://github.com/fluent/fluentd/actions/workflows/windows-test.yaml/badge.svg?branch=master)](https://github.com/fluent/fluentd/actions/workflows/windows-test.yaml)
 [![Testing on macOS](https://github.com/fluent/fluentd/actions/workflows/macos-test.yaml/badge.svg?branch=master)](https://github.com/fluent/fluentd/actions/workflows/macos-test.yaml)
-[![Testing on Arm64](https://cloud.drone.io/api/badges/fluent/fluentd/status.svg?branch=master)](https://cloud.drone.io/fluent/fluentd)
 [![Code Climate](https://codeclimate.com/github/fluent/fluentd/badges/gpa.svg)](https://codeclimate.com/github/fluent/fluentd)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/1189/badge)](https://bestpractices.coreinfrastructure.org/projects/1189)