diff --git a/docker-compose.yml b/compose.yaml
similarity index 99%
rename from docker-compose.yml
rename to compose.yaml
index cf2977b2..1b943ce2 100644
--- a/docker-compose.yml
+++ b/compose.yaml
@@ -1,7 +1,5 @@
 # Creates a development environment
 
-version: '3.5'
-
 services:
   neucore_db:
     container_name: neucore_dev_db
diff --git a/doc/Install.md b/doc/Install.md
index 3691150f..7302b807 100644
--- a/doc/Install.md
+++ b/doc/Install.md
@@ -290,24 +290,25 @@ cd frontend && npm run build
 
 ### Docker Development Environment
 
-Only tested on Linux and once or twice on macOS.
+Needs [Docker Compose](https://docs.docker.com/compose/) V2. Only tested on Linux and once or 
+twice on macOS.
 
-Copy `backend/.env.dist` file to `backend/.env` and adjust values, the database password and user are both `neucore`,
-the database host is `neucore_db` and the database name also `neucore`.
+Copy `backend/.env.dist` file to `backend/.env` and adjust values, the database password and user 
+are both `neucore`, the database host is `neucore_db` and the database name also `neucore`.
 
 - Always run `export UID` first in each console that you use to execute any of the following commands.
 - Build the containers:  
-  `docker-compose build`
+  `docker compose build`
 - Start services:  
-  `docker-compose up`
+  `docker compose up`
 - Install the app:  
   `setup/install-docker.sh`  
-  `docker-compose exec neucore_node npm run build`
+  `docker compose exec neucore_node npm run build`
 - After the first login, make the account with the ID 1 admin:  
-  `docker-compose exec neucore_php bin/console make-admin 1`
+  `docker compose exec neucore_php bin/console make-admin 1`
 - Run tests and other commands in the php and node containers:  
-  `docker-compose exec neucore_php /bin/sh`  
-  `docker-compose exec neucore_node /bin/sh`
+  `docker compose exec neucore_php /bin/sh`  
+  `docker compose exec neucore_node /bin/sh`
 
 The web application is available at http://localhost:8080, the frontend development server at http://localhost:3000.
 The database is also available at `127.0.0.1:30306` and it's data is stored in the `.db` subdirectory.
diff --git a/doc/api-examples/app-esi-examples.php b/doc/api-examples/app-esi-examples.php
index 374a71c4..799d35da 100644
--- a/doc/api-examples/app-esi-examples.php
+++ b/doc/api-examples/app-esi-examples.php
@@ -40,7 +40,7 @@
 //
 
 $coreHttpScheme = 'http';
-$coreDomain = 'neucore_http'; // works with docker-compose
+$coreDomain = 'neucore_http'; // Works with compose.yaml.
 $coreAppToken = base64_encode('1:secret');
 $coreCharId = '96061222'; // Character with token in Neucore
 
diff --git a/frontend/.env.development b/frontend/.env.development
index ac0cd306..d36f514a 100644
--- a/frontend/.env.development
+++ b/frontend/.env.development
@@ -3,5 +3,5 @@
 # Create an .env.development.local file to override the values if necessary.
 
 # The backend domain, e.g. http://localhost:8080
-# (BACKEND_HOST is defined in docker-compose.yml)
+# (BACKEND_HOST is defined in compose.yaml)
 VUE_APP_BACKEND_HOST=$BACKEND_HOST
diff --git a/setup/dist-docker.sh b/setup/dist-docker.sh
index f063618f..97264b2d 100755
--- a/setup/dist-docker.sh
+++ b/setup/dist-docker.sh
@@ -13,20 +13,20 @@ echo "NEUCORE_DATABASE_URL=mysql://user:@127.0.0.1/db?serverVersion=10.5.22-Mari
 
 # Backend
 cd "${DIR}"/.. || exit
-docker-compose exec neucore_php sh -c "cd ../dist/build/backend && composer install --no-dev --optimize-autoloader --no-interaction"
-docker-compose exec neucore_php sh -c "cd ../dist/build/backend && bin/doctrine orm:generate-proxies"
-docker-compose exec neucore_php sh -c "cd ../dist/build/backend && composer openapi"
+docker compose exec neucore_php sh -c "cd ../dist/build/backend && composer install --no-dev --optimize-autoloader --no-interaction"
+docker compose exec neucore_php sh -c "cd ../dist/build/backend && bin/doctrine orm:generate-proxies"
+docker compose exec neucore_php sh -c "cd ../dist/build/backend && composer openapi"
 
 # OpenAPI JS client
 cd "${DIR}"/.. || exit
-docker-compose run neucore_java /app/dist/build/frontend/openapi.sh
-docker-compose exec neucore_node sh -c "cd ../dist/build/frontend/neucore-js-client && npm install"
-docker-compose exec neucore_node sh -c "cd ../dist/build/frontend/neucore-js-client && npm run build"
+docker compose run neucore_java /app/dist/build/frontend/openapi.sh
+docker compose exec neucore_node sh -c "cd ../dist/build/frontend/neucore-js-client && npm install"
+docker compose exec neucore_node sh -c "cd ../dist/build/frontend/neucore-js-client && npm run build"
 
 # Frontend
 cd "${DIR}"/.. || exit
-docker-compose exec neucore_node sh -c "cd ../dist/build/frontend && npm install"
-docker-compose exec neucore_node sh -c "cd ../dist/build/frontend && npm run build"
+docker compose exec neucore_node sh -c "cd ../dist/build/frontend && npm install"
+docker compose exec neucore_node sh -c "cd ../dist/build/frontend && npm run build"
 
 # Collect files and create archive
 "${DIR}"/../dist/build/setup/dist-collect-files.sh
diff --git a/setup/install-docker.sh b/setup/install-docker.sh
index c3cf9169..8e0994e5 100755
--- a/setup/install-docker.sh
+++ b/setup/install-docker.sh
@@ -5,23 +5,23 @@ DIR=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
 # Install backend, run database migrations and generate OpenAPI files.
 cd "${DIR}"/.. || exit
 if [[ $1 = prod ]]; then
-    docker-compose exec neucore_php composer install --no-dev --optimize-autoloader --no-interaction
-    docker-compose exec neucore_php composer compile:prod --no-dev --no-interaction
+    docker compose exec neucore_php composer install --no-dev --optimize-autoloader --no-interaction
+    docker compose exec neucore_php composer compile:prod --no-dev --no-interaction
 else
-    docker-compose exec neucore_php composer install
-    docker-compose exec neucore_php composer compile
+    docker compose exec neucore_php composer install
+    docker compose exec neucore_php composer compile
 fi
 
 # Generate and build OpenAPI JavaScript client
-docker-compose run neucore_java /app/frontend/openapi.sh
-docker-compose exec neucore_node npm install --prefix /app/frontend/neucore-js-client
-docker-compose exec neucore_node npm run build --prefix /app/frontend/neucore-js-client
+docker compose run neucore_java /app/frontend/openapi.sh
+docker compose exec neucore_node npm install --prefix /app/frontend/neucore-js-client
+docker compose exec neucore_node npm run build --prefix /app/frontend/neucore-js-client
 
 
 # Build frontend
-docker-compose exec neucore_node npm install
+docker compose exec neucore_node npm install
 if [[ $1 = prod ]]; then
-    docker-compose exec neucore_node npm run build
+    docker compose exec neucore_node npm run build
 fi
 
 # Create database for unit tests