diff --git a/DEVELOP.md b/DEVELOP.md
index 776b2acc3..5d024a349 100644
--- a/DEVELOP.md
+++ b/DEVELOP.md
@@ -58,7 +58,7 @@ Edit the following lines in `Dockerfile`:
 
 ```
 # The tag should be the latest one
-FROM quay.io/cybozu/mysql:8.0.30.1 as mysql
+FROM ghcr.io/cybozu-go/moco/mysql:8.0.30.1 as mysql
 
 # See the below description for how to get the version string.
 ARG MYSQLSH_VERSION=8.0.30-1
diff --git a/Dockerfile b/Dockerfile
index 24b3124d2..cf1f9a54c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@ USER 10000:10000
 ENTRYPOINT ["/moco-controller"]
 
 # For MySQL binaries
-FROM --platform=$TARGETPLATFORM quay.io/cybozu/mysql:8.0.32.1 as mysql
+FROM --platform=$TARGETPLATFORM ghcr.io/cybozu-go/moco/mysql:8.0.32.1 as mysql
 
 # the backup image
 FROM --platform=$TARGETPLATFORM quay.io/cybozu/ubuntu:20.04
diff --git a/README.md b/README.md
index 2eaf041ae..c6db4c99f 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/docs/custom-mysqld.md b/docs/custom-mysqld.md
index 775a4bedf..d26fc69bd 100644
--- a/docs/custom-mysqld.md
+++ b/docs/custom-mysqld.md
@@ -1,6 +1,6 @@
 # Building custom image of `mysqld`
 
-There are pre-built `mysqld` container images for MOCO on [`quay.io/cybozu/mysql`](https://quay.io/repository/cybozu/mysql?tag=latest&tab=tags).
+There are pre-built `mysqld` container images for MOCO on [`ghcr.io/cybozu-go/moco/mysql`](https://github.com/cybozu-go/moco/pkgs/container/moco%2Fmysql).
 Users can use one of these images to supply `mysqld` container in [MySQLCluster](crd_mysqlcluster.md) like:
 
 ```yaml
@@ -11,7 +11,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
 ```
 
 If you want to build and use your own `mysqld`, read the rest of this document.
diff --git a/docs/customize-system-container.md b/docs/customize-system-container.md
index 02553695d..225d0c10c 100644
--- a/docs/customize-system-container.md
+++ b/docs/customize-system-container.md
@@ -18,7 +18,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
     overwriteContainers:
     - name: agent
       resources:
diff --git a/docs/designdoc/allow_customize_containers.md b/docs/designdoc/allow_customize_containers.md
index 2d01e2fbe..0d6c870a4 100644
--- a/docs/designdoc/allow_customize_containers.md
+++ b/docs/designdoc/allow_customize_containers.md
@@ -32,7 +32,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
     overwriteContainers:
     - name: agent
       resources:
@@ -95,7 +95,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
     overwriteContainers:
       agent:
         resources:
diff --git a/docs/designdoc/support_reduce_volume_size.md b/docs/designdoc/support_reduce_volume_size.md
index 40b20fef7..e790838a1 100644
--- a/docs/designdoc/support_reduce_volume_size.md
+++ b/docs/designdoc/support_reduce_volume_size.md
@@ -45,7 +45,7 @@ For example, the user modifies the `.spec.volumeClaimTemplates` of the MySQLClus
       spec:
         containers:
         - name: mysqld
-          image: quay.io/cybozu/mysql:8.0.30
+          image: ghcr.io/cybozu-go/moco/mysql:8.0.30
     volumeClaimTemplates:
     - metadata:
         name: mysql-data
diff --git a/docs/usage.md b/docs/usage.md
index 9a3210fe3..1b53bca1a 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -99,7 +99,7 @@ spec:
       containers:
       # At least a container named "mysqld" must be defined.
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
         # By limiting CPU and memory, Pods will have Guaranteed QoS class.
         # requests can be omitted; it will be set to the same value as limits.
         resources:
@@ -207,7 +207,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30  # must be the same version as the donor
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30  # must be the same version as the donor
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
@@ -222,7 +222,7 @@ To stop the replication from the donor, update MySQLCluster with `spec.replicati
 
 ### Bring your own image
 
-We provide pre-built MySQL container images at [quay.io/cybozu/mysql](http://quay.io/cybozu/mysql).
+We provide pre-built MySQL container images at [ghcr.io/cybozu-go/moco/mysql](https://github.com/cybozu-go/moco/pkgs/container/moco%2Fmysql).
 If you want to build and use your own image, read [`custom-mysqld.md`](custom-mysqld.md).
 
 ## Configurations
@@ -695,7 +695,7 @@ spec:
       containers:
       - name: mysqld
         # Edit the next line
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
 ```
 
 You are advised to make backups and/or create a replica cluster before starting the upgrade process.
diff --git a/e2e/mycluster.yaml b/e2e/mycluster.yaml
index 391065123..50050024c 100644
--- a/e2e/mycluster.yaml
+++ b/e2e/mycluster.yaml
@@ -9,7 +9,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/backup.yaml b/e2e/testdata/backup.yaml
index bf2a31263..dfebab319 100644
--- a/e2e/testdata/backup.yaml
+++ b/e2e/testdata/backup.yaml
@@ -51,7 +51,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/backup_gcs.yaml b/e2e/testdata/backup_gcs.yaml
index ed24e0e0b..42a2f4e13 100644
--- a/e2e/testdata/backup_gcs.yaml
+++ b/e2e/testdata/backup_gcs.yaml
@@ -48,7 +48,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/client.yaml b/e2e/testdata/client.yaml
index 0ec66ab21..9327585fa 100644
--- a/e2e/testdata/client.yaml
+++ b/e2e/testdata/client.yaml
@@ -7,5 +7,5 @@ metadata:
 spec:
   containers:
   - name: pause
-    image: quay.io/cybozu/mysql:{{ . }}
+    image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
     command: ["pause"]
diff --git a/e2e/testdata/donor.yaml b/e2e/testdata/donor.yaml
index a3597c635..eec6b13b9 100644
--- a/e2e/testdata/donor.yaml
+++ b/e2e/testdata/donor.yaml
@@ -22,7 +22,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/failover.yaml b/e2e/testdata/failover.yaml
index b9666ad33..43c07301f 100644
--- a/e2e/testdata/failover.yaml
+++ b/e2e/testdata/failover.yaml
@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
         - name: mysqld
-          image: quay.io/cybozu/mysql:{{ . }}
+          image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
     - metadata:
         name: mysql-data
diff --git a/e2e/testdata/failure.yaml b/e2e/testdata/failure.yaml
index 4e86269f9..47b1eecda 100644
--- a/e2e/testdata/failure.yaml
+++ b/e2e/testdata/failure.yaml
@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/pvc_test.yaml b/e2e/testdata/pvc_test.yaml
index 20739d164..19092422e 100644
--- a/e2e/testdata/pvc_test.yaml
+++ b/e2e/testdata/pvc_test.yaml
@@ -32,7 +32,7 @@ spec:
     spec:
       containers:
         - name: mysqld
-          image: quay.io/cybozu/mysql:{{ . }}
+          image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
     - metadata:
         name: mysql-data
diff --git a/e2e/testdata/pvc_test_changed.yaml b/e2e/testdata/pvc_test_changed.yaml
index e6494a21c..d12ae4dbc 100644
--- a/e2e/testdata/pvc_test_changed.yaml
+++ b/e2e/testdata/pvc_test_changed.yaml
@@ -10,7 +10,7 @@ spec:
     spec:
       containers:
         - name: mysqld
-          image: quay.io/cybozu/mysql:{{ . }}
+          image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
     - metadata:
         name: mysql-data
diff --git a/e2e/testdata/replication.yaml b/e2e/testdata/replication.yaml
index fa236647d..aa0fd47c5 100644
--- a/e2e/testdata/replication.yaml
+++ b/e2e/testdata/replication.yaml
@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/restore.yaml b/e2e/testdata/restore.yaml
index 8a0d9f03e..019f5c05c 100644
--- a/e2e/testdata/restore.yaml
+++ b/e2e/testdata/restore.yaml
@@ -27,7 +27,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ .MySQLVersion }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ .MySQLVersion }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/restore_gcs.yaml b/e2e/testdata/restore_gcs.yaml
index 62a56c28f..11cbd6fc9 100644
--- a/e2e/testdata/restore_gcs.yaml
+++ b/e2e/testdata/restore_gcs.yaml
@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ .MySQLVersion }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ .MySQLVersion }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/e2e/testdata/single.yaml b/e2e/testdata/single.yaml
index 4b05ff142..088f3a4e8 100644
--- a/e2e/testdata/single.yaml
+++ b/e2e/testdata/single.yaml
@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
         resources:
           limits:
             cpu: "0.5"
diff --git a/e2e/testdata/upgrade.yaml b/e2e/testdata/upgrade.yaml
index 5a586713f..3eaa87990 100644
--- a/e2e/testdata/upgrade.yaml
+++ b/e2e/testdata/upgrade.yaml
@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:{{ . }}
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/examples/anti-affinity.yaml b/examples/anti-affinity.yaml
index 6345328fc..54bcafa01 100644
--- a/examples/anti-affinity.yaml
+++ b/examples/anti-affinity.yaml
@@ -26,7 +26,7 @@ spec:
             topologyKey: "kubernetes.io/hostname"
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
         resources:
           requests:
             cpu: "10"
diff --git a/examples/collect-metrics.yaml b/examples/collect-metrics.yaml
index 52eae4115..e93941ed0 100644
--- a/examples/collect-metrics.yaml
+++ b/examples/collect-metrics.yaml
@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/examples/custom-mycnf.yaml b/examples/custom-mycnf.yaml
index 4d3db2a1e..60c93cce5 100644
--- a/examples/custom-mycnf.yaml
+++ b/examples/custom-mycnf.yaml
@@ -24,7 +24,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/examples/custom-probe.yaml b/examples/custom-probe.yaml
index af2c620c4..3415b4da3 100644
--- a/examples/custom-probe.yaml
+++ b/examples/custom-probe.yaml
@@ -10,7 +10,7 @@ spec:
     spec:
       containers:
         - name: mysqld
-          image: quay.io/cybozu/mysql:8.0.30
+          image: ghcr.io/cybozu-go/moco/mysql:8.0.30
           # If you want to override the default probes, you cannot override the httpGet.
           livenessProbe:
             failureThreshold: 3
diff --git a/examples/guaranteed.yaml b/examples/guaranteed.yaml
index 597e386ae..4ec223d2d 100644
--- a/examples/guaranteed.yaml
+++ b/examples/guaranteed.yaml
@@ -10,7 +10,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
         # By limiting CPU and memory, Pods will have Guaranteed QoS class.
         # requests can be omitted; it will be set to the same value as limits.
         resources:
diff --git a/examples/loadbalancer.yaml b/examples/loadbalancer.yaml
index adb3579c6..041d22523 100644
--- a/examples/loadbalancer.yaml
+++ b/examples/loadbalancer.yaml
@@ -18,7 +18,7 @@ spec:
     spec:
       containers:
       - name: mysqld
-        image: quay.io/cybozu/mysql:8.0.30
+        image: ghcr.io/cybozu-go/moco/mysql:8.0.30
   volumeClaimTemplates:
   - metadata:
       name: mysql-data
diff --git a/version.go b/version.go
index 74ea587fd..37a1a2600 100644
--- a/version.go
+++ b/version.go
@@ -5,8 +5,8 @@ const (
 	Version = "0.16.1"
 
 	// FluentBitImage is the image for slow-log sidecar container.
-	FluentBitImage = "quay.io/cybozu/fluent-bit:2.0.9.1"
+	FluentBitImage = "ghcr.io/cybozu-go/moco/fluent-bit:2.0.9.1"
 
 	// ExporterImage is the image for mysqld_exporter sidecar container.
-	ExporterImage = "quay.io/cybozu/mysqld_exporter:0.14.0.4"
+	ExporterImage = "ghcr.io/cybozu-go/moco/mysqld_exporter:0.14.0.1"
 )