diff --git a/.gitea/workflows/ci-image.yml b/.gitea/workflows/ci-image.yml
index 829f886..13856f7 100644
--- a/.gitea/workflows/ci-image.yml
+++ b/.gitea/workflows/ci-image.yml
@@ -17,7 +17,7 @@ on:
 env:
   REGISTRY: gitea.lille-vemmelund.dk
   REGISTRY_USER: ci-bot
-  IMAGE: gitea.lille-vemmelund.dk/LilleVemmelund/python-repositories-ci
+  IMAGE: gitea.lille-vemmelund.dk/lillevemmelund/python-repositories-ci
 
 jobs:
   build-and-push:
diff --git a/docs/ci-image.md b/docs/ci-image.md
index 5ce43a7..0617492 100644
--- a/docs/ci-image.md
+++ b/docs/ci-image.md
@@ -14,10 +14,10 @@ Built from [`docker/ci/Dockerfile`](../docker/ci/Dockerfile):
 - Docker CLI (integration tests via testcontainers)
 - Dev dependencies from `uv.lock` (`uv sync --all-extras --no-install-project`)
 
-Published to the Gitea container registry:
+Published to the Gitea container registry (owner segment must be lowercase for Docker):
 
-- `gitea.lille-vemmelund.dk/LilleVemmelund/python-repositories-ci:latest`
-- `gitea.lille-vemmelund.dk/LilleVemmelund/python-repositories-ci:YYYYMMDDHHmm` (timestamped rollback tag)
+- `gitea.lille-vemmelund.dk/lillevemmelund/python-repositories-ci:latest`
+- `gitea.lille-vemmelund.dk/lillevemmelund/python-repositories-ci:YYYYMMDDHHmm` (timestamped rollback tag)
 
 ## Rebuild triggers
 
@@ -108,7 +108,7 @@ homelab-platform
 [`platform/gitea-runners/values.yaml`](https://gitea.lille-vemmelund.dk/LilleVemmelund/homelab-platform/src/branch/main/platform/gitea-runners/values.yaml):
 
 ```yaml
-python-repositories-ci:docker://gitea.lille-vemmelund.dk/LilleVemmelund/python-repositories-ci:latest
+python-repositories-ci:docker://gitea.lille-vemmelund.dk/lillevemmelund/python-repositories-ci:latest
 ```
 
 After label changes, roll runner pods so they re-register with Gitea.
@@ -137,7 +137,7 @@ bash scripts/ci/build-ci-image.sh --push
 ```
 
 Run from the repo root on the branch you want to test. Runners pull
-`gitea.lille-vemmelund.dk/LilleVemmelund/python-repositories-ci:latest` from the registry;
+`gitea.lille-vemmelund.dk/lillevemmelund/python-repositories-ci:latest` from the registry;
 they do not care which git branch built it.
 
 Override registry settings if needed:
diff --git a/scripts/ci/build-ci-image.sh b/scripts/ci/build-ci-image.sh
index cf17833..61fadf0 100755
--- a/scripts/ci/build-ci-image.sh
+++ b/scripts/ci/build-ci-image.sh
@@ -15,7 +15,7 @@
 # Optional overrides:
 #   REGISTRY=gitea.lille-vemmelund.dk
 #   REGISTRY_USER=ci-bot
-#   IMAGE_OWNER=LilleVemmelund
+#   IMAGE_OWNER=lillevemmelund
 #   IMAGE_NAME=python-repositories-ci
 set -euo pipefail
 
@@ -24,7 +24,7 @@ REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
 
 REGISTRY="${REGISTRY:-gitea.lille-vemmelund.dk}"
 REGISTRY_USER="${REGISTRY_USER:-ci-bot}"
-IMAGE_OWNER="${IMAGE_OWNER:-LilleVemmelund}"
+IMAGE_OWNER="${IMAGE_OWNER:-lillevemmelund}"
 IMAGE_NAME="${IMAGE_NAME:-python-repositories-ci}"
 IMAGE="${IMAGE:-${REGISTRY}/${IMAGE_OWNER}/${IMAGE_NAME}}"