diff --git a/beeper/etc/containers/systemd/mastodon/mastodon-dfdb.container b/beeper/etc/containers/systemd/mastodon/mastodon-dfdb.container
index 58d4f4d..d6dde0a 100644
--- a/beeper/etc/containers/systemd/mastodon/mastodon-dfdb.container
+++ b/beeper/etc/containers/systemd/mastodon/mastodon-dfdb.container
@@ -2,7 +2,6 @@
 Description=Mastodon Dragonfly DB
 
 [Container]
-ContainerName=mastodon-dfdb
 Image=docker.dragonflydb.io/dragonflydb/dragonfly
 ContainerName=mastodon-dfdb
 Environment=DFLY_snapshot_cron="* * * * *"
diff --git a/beeper/etc/containers/systemd/mastodon/mastodon-ingress.container b/beeper/etc/containers/systemd/mastodon/mastodon-ingress.container
index bb370bc..ff84931 100644
--- a/beeper/etc/containers/systemd/mastodon/mastodon-ingress.container
+++ b/beeper/etc/containers/systemd/mastodon/mastodon-ingress.container
@@ -4,7 +4,6 @@ Requires=postgresql.service mastodon-dfdb.service
 After=postgresql.service mastodon-dfdb.service
 
 [Container]
-ContainerName=mastodon-ingress
 Image=ghcr.io/synth-download/mastodon-ingress:nightly
 ContainerName=mastodon-ingress
 EnvironmentFile=/var/containers/mastodon/.env.secrets
diff --git a/beeper/etc/containers/systemd/mastodon/mastodon-sidekiq.container b/beeper/etc/containers/systemd/mastodon/mastodon-sidekiq.container
index ab1d3a3..cf3efb2 100644
--- a/beeper/etc/containers/systemd/mastodon/mastodon-sidekiq.container
+++ b/beeper/etc/containers/systemd/mastodon/mastodon-sidekiq.container
@@ -4,7 +4,6 @@ Requires=postgresql.service mastodon-dfdb.service
 After=postgresql.service mastodon-dfdb.service
 
 [Container]
-ContainerName=mastodon-sidekiq
 Image=ghcr.io/synth-download/mastodon:nightly
 ContainerName=mastodon-sidekiq
 EnvironmentFile=/var/containers/mastodon/.env.secrets
diff --git a/beeper/etc/containers/systemd/mastodon/mastodon-streaming.container b/beeper/etc/containers/systemd/mastodon/mastodon-streaming.container
index 354534f..a7be589 100644
--- a/beeper/etc/containers/systemd/mastodon/mastodon-streaming.container
+++ b/beeper/etc/containers/systemd/mastodon/mastodon-streaming.container
@@ -4,7 +4,6 @@ Requires=postgresql.service mastodon-dfdb.service
 After=postgresql.service mastodon-dfdb.service
 
 [Container]
-ContainerName=mastodon-streaming
 Image=ghcr.io/synth-download/mastodon-streaming:nightly
 ContainerName=mastodon-streaming
 EnvironmentFile=/var/containers/mastodon/.env.secrets
diff --git a/beeper/etc/containers/systemd/mastodon/mastodon-web.container b/beeper/etc/containers/systemd/mastodon/mastodon-web.container
index aa6ed0a..7a48881 100644
--- a/beeper/etc/containers/systemd/mastodon/mastodon-web.container
+++ b/beeper/etc/containers/systemd/mastodon/mastodon-web.container
@@ -4,7 +4,6 @@ Requires=postgresql.service mastodon-dfdb.service
 After=postgresql.service mastodon-dfdb.service
 
 [Container]
-ContainerName=mastodon-web
 Image=ghcr.io/synth-download/mastodon:nightly
 ContainerName=mastodon-web
 EnvironmentFile=/var/containers/mastodon/.env.secrets
diff --git a/beeper/etc/containers/systemd/postgresql/postgresql.container b/beeper/etc/containers/systemd/postgresql/postgresql.container
index c9b795f..066c8f7 100644
--- a/beeper/etc/containers/systemd/postgresql/postgresql.container
+++ b/beeper/etc/containers/systemd/postgresql/postgresql.container
@@ -2,7 +2,6 @@
 Description=PostgreSQL Database
 
 [Container]
-ContainerName=postgresql
 Image=registry.hub.docker.com/groonga/pgroonga:latest-alpine-18
 ContainerName=postgresql
 EnvironmentFile=/var/containers/postgresql/.env