diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 13277eaf8..3e623f1ef 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -51,6 +51,9 @@ jobs:
           - dir: "./squid"
             container-image: "squid"
             scan: "true"
+          - dir: "./unbound"
+            container-image: "unbound"
+            scan: "true"
 
     runs-on: ubuntu-22.04
     env:
diff --git a/unbound/Dockerfile b/unbound/Dockerfile
index b4e390e6f..7ba8c7e23 100644
--- a/unbound/Dockerfile
+++ b/unbound/Dockerfile
@@ -1,4 +1,4 @@
-FROM quay.io/cybozu/ubuntu-dev:22.04 AS build
+FROM ghcr.io/cybozu/ubuntu-dev:22.04 AS build
 
 ARG UNBOUND_VERSION=1.18.0
 
@@ -21,7 +21,8 @@ RUN mkdir -p /usr/local/unbound \
 RUN /usr/local/unbound/sbin/unbound-anchor -v || true
 RUN /usr/local/unbound/sbin/unbound-anchor -v
 
-FROM quay.io/cybozu/ubuntu:22.04
+FROM ghcr.io/cybozu/ubuntu:22.04
+LABEL org.opencontainers.image.source="https://github.com/cybozu/neco-containers"
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends libevent-2.1-7 \
diff --git a/unbound/TAG b/unbound/TAG
index f138d0e09..88dcf6bb3 100644
--- a/unbound/TAG
+++ b/unbound/TAG
@@ -1 +1 @@
-1.18.0.1
+1.18.0.2