diff --git a/forgejo-runner.sh b/forgejo-runner.sh
index 228a1bb..dd9de5d 100755
--- a/forgejo-runner.sh
+++ b/forgejo-runner.sh
@@ -24,7 +24,7 @@ function download() {
 function register() {
     local forgejo="$1"
     docker exec --user 1000 forgejo forgejo actions generate-runner-token > forgejo-runner-token
-    timeout --signal=KILL 30 forgejo-runner register --no-interactive --instance "$forgejo" --name runner --token $(cat forgejo-runner-token) --labels docker:docker://node:16-bullseye,ubuntu-latest:docker://node:16-buster,self-hosted
+    timeout --signal=KILL 30 forgejo-runner register --no-interactive --instance "$forgejo" --name runner --token $(cat forgejo-runner-token) --labels docker:docker://code.forgejo.org/oci/node:16-bullseye,ubuntu-latest:docker://code.forgejo.org/oci/node:16-buster,self-hosted
 }
 
 function run() {
diff --git a/testdata/example-cron/.forgejo/workflows/test.yml b/testdata/example-cron/.forgejo/workflows/test.yml
index e1c2b87..c81b017 100644
--- a/testdata/example-cron/.forgejo/workflows/test.yml
+++ b/testdata/example-cron/.forgejo/workflows/test.yml
@@ -6,7 +6,7 @@ jobs:
   test:
     runs-on: docker
     container:
-      image: debian:bookworm
+      image: code.forgejo.org/oci/debian:bookworm
       options: "--volume /srv/example-cron-volume:/srv/example-cron-volume"
 
     steps:
diff --git a/testdata/example-cron/runner-config.yaml b/testdata/example-cron/runner-config.yaml
index bc5d862..119cde4 100644
--- a/testdata/example-cron/runner-config.yaml
+++ b/testdata/example-cron/runner-config.yaml
@@ -10,7 +10,7 @@ runner:
   insecure: false
   fetch_timeout: 5s
   fetch_interval: 2s
-  labels: []
+  labels: ["docker:docker://code.forgejo.org/oci/node:16-bullseye"]
 
 cache:
   enabled: false
diff --git a/testdata/example-pull-request/.forgejo/workflows/test.yml b/testdata/example-pull-request/.forgejo/workflows/test.yml
index 1e6ad0b..a05f961 100644
--- a/testdata/example-pull-request/.forgejo/workflows/test.yml
+++ b/testdata/example-pull-request/.forgejo/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
   test:
     runs-on: docker
     container:
-      image: debian:bookworm
+      image: code.forgejo.org/oci/debian:bookworm
       options: "--volume /srv/example-pull-request:/srv/example-pull-request"
 
     steps:
diff --git a/testdata/example-pull-request/runner-config.yaml b/testdata/example-pull-request/runner-config.yaml
index 7f7d9cc..e9f4aeb 100644
--- a/testdata/example-pull-request/runner-config.yaml
+++ b/testdata/example-pull-request/runner-config.yaml
@@ -10,7 +10,7 @@ runner:
   insecure: false
   fetch_timeout: 5s
   fetch_interval: 2s
-  labels: []
+  labels: ["docker:docker://code.forgejo.org/oci/node:16-bullseye"]
 
 cache:
   enabled: false
diff --git a/testdata/example-service/.forgejo/workflows/postgresql.yml b/testdata/example-service/.forgejo/workflows/postgresql.yml
index f600b17..9d9d30e 100644
--- a/testdata/example-service/.forgejo/workflows/postgresql.yml
+++ b/testdata/example-service/.forgejo/workflows/postgresql.yml
@@ -4,11 +4,11 @@ jobs:
   test:
     runs-on: docker
     container:
-      image: debian:bookworm
+      image: code.forgejo.org/oci/debian:bookworm
 
     services:
       pgsql:
-        image: postgres:15
+        image: code.forgejo.org/oci/postgres:15
         env:
           POSTGRES_DB: test
           POSTGRES_PASSWORD: postgres
diff --git a/testdata/example-service/.forgejo/workflows/volume.yml b/testdata/example-service/.forgejo/workflows/volume.yml
index e3c240e..0649f50 100644
--- a/testdata/example-service/.forgejo/workflows/volume.yml
+++ b/testdata/example-service/.forgejo/workflows/volume.yml
@@ -7,7 +7,7 @@ jobs:
   volume-on-step:
     runs-on: docker
     container:
-      image: debian:bookworm
+      image: code.forgejo.org/oci/debian:bookworm
       options: "--volume /srv/example-service-volume-valid:/srv/example-service-volume-valid --volume /srv/example-service-volume-invalid:/srv/example-service-volume-invalid"
 
     steps:
@@ -21,12 +21,12 @@ jobs:
   volume-on-service:
     runs-on: docker
     container:
-      image: debian:bookworm
+      image: code.forgejo.org/oci/debian:bookworm
       options: "--volume /srv/example-service-volume-valid:/srv/example-service-volume-valid"
 
     services:
       myservice:
-        image: debian:bookworm
+        image: code.forgejo.org/oci/debian:bookworm
         options: "--volume /srv/example-service-volume-valid:/srv/example-service-volume-valid"
         cmd: ["bash", "-c", "echo -n SUCCESS > /srv/example-service-volume-valid ; sleep infinity"]
 
diff --git a/testdata/example-service/runner-config.yaml b/testdata/example-service/runner-config.yaml
index 95ea4cb..4606852 100644
--- a/testdata/example-service/runner-config.yaml
+++ b/testdata/example-service/runner-config.yaml
@@ -10,7 +10,7 @@ runner:
   insecure: false
   fetch_timeout: 5s
   fetch_interval: 2s
-  labels: []
+  labels: ["docker:docker://code.forgejo.org/oci/node:16-bullseye"]
 
 cache:
   enabled: false