diff --git a/.dockerignore b/.dockerignore
index 8248486..91346c1 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,2 +1,5 @@
+# SPDX-FileCopyrightText: 2026 SAP SE or an SAP affiliate company and Greenhouse contributors
+# SPDX-License-Identifier: Apache-2.0
+
 # local testing files that may contain secrets
 *.tmp.json
diff --git a/Dockerfile b/Dockerfile
index 7345e0f..8c34978 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ WORKDIR /concourse-oci-helm-chart-resource
 COPY . .
 RUN make build
 
-FROM --platform=${BUILDPLATFORM:-linux/amd64} alpine:3.22.0 AS run
+FROM --platform=${BUILDPLATFORM:-linux/amd64} alpine:3.22.3 AS run
 
 # upgrade all installed packages to fix potential CVEs in advance
 RUN apk upgrade --no-cache --no-progress \
diff --git a/pkg/resource/version.go b/pkg/resource/version.go
index d82489e..afe318c 100644
--- a/pkg/resource/version.go
+++ b/pkg/resource/version.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2026 SAP SE or an SAP affiliate company and Greenhouse contributors
+// SPDX-License-Identifier: Apache-2.0
+
 package resource
 
 import (