diff --git a/helm/core-manifest-service/Chart.lock b/helm/core-manifest-service/Chart.lock
index 97b5d6acca41e93fa86cfc618a36ee75ebdfd8c0..36e78e20ae56a7e8715095204703b2e364957f11 100644
--- a/helm/core-manifest-service/Chart.lock
+++ b/helm/core-manifest-service/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: ox-common
   repository: oci://registry.open-xchange.com/common/charts
-  version: 1.0.13
-digest: sha256:52b19d958411d91eabf30266f594ab6b2a4b76997c4c93d6c6bb4a28d64ca716
-generated: "2022-01-27T10:44:48.784704+01:00"
+  version: 1.0.17
+digest: sha256:0ab9e19964f4c46bbe7bfc5ffff6b086b92f2309f1ae895fc814945b7b95ee9c
+generated: "2022-02-04T10:54:27.434320472+01:00"
diff --git a/helm/core-manifest-service/Chart.yaml b/helm/core-manifest-service/Chart.yaml
index 7ba511c3a5fe4e7a23937eaf7eecbe330a89f604..117773a232388a0e4e325726739ad80ae4a4cc06 100644
--- a/helm/core-manifest-service/Chart.yaml
+++ b/helm/core-manifest-service/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 2.0.4
+version: 2.0.5
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/helm/core-manifest-service/templates/configMap.yaml b/helm/core-manifest-service/templates/configMap.yaml
index 9a09801831ccf161c0000270c219a6b89d7eda42..94bcef71ccc22ff0b7519a9a84d8ab2f6e033787 100644
--- a/helm/core-manifest-service/templates/configMap.yaml
+++ b/helm/core-manifest-service/templates/configMap.yaml
@@ -1,3 +1,4 @@
+{{- if (not .Values.existingConfigMap) -}}
 apiVersion: v1
 kind: ConfigMap
 metadata:
@@ -6,3 +7,4 @@ data:
   urls.yaml: |
     manifests:
       {{- toYaml .Values.manifests | nindent 6 }}
+{{- end }}
diff --git a/helm/core-manifest-service/templates/deployment.yaml b/helm/core-manifest-service/templates/deployment.yaml
index b339b5fef910546f1ebc478337edf0c11e0dc767..dd7d259b4a7cc32832ba436321a046578253e1f7 100644
--- a/helm/core-manifest-service/templates/deployment.yaml
+++ b/helm/core-manifest-service/templates/deployment.yaml
@@ -53,5 +53,5 @@ spec:
       volumes:
         - name: manifest-config
           configMap:
-            name: {{ include "ox-common.names.fullname" . }}
+            name: {{ .Values.existingConfigMap | default (include "ox-common.names.fullname" .) }}