diff --git a/argocd/app-of-apps/templates/applications.yaml b/argocd/app-of-apps/templates/applications.yaml
index e981e07..f03ae76 100644
--- a/argocd/app-of-apps/templates/applications.yaml
+++ b/argocd/app-of-apps/templates/applications.yaml
@@ -10,6 +10,17 @@ metadata:
   finalizers:
     - resources-finalizer.argocd.argoproj.io
 spec:
+  {{- if .ignoreDifferences }}
+  ignoreDifferences:
+    {{- range .ignoreDifferences }}
+    - group: {{ .group }}
+      kind: {{ .kind }}
+      name: {{ .name }}
+      namespace: {{ .namespace }}
+      jsonPointers:
+        {{- toYaml .jsonPointers . | nindent 10 }}
+    {{- end }}
+  {{- end }}
   syncPolicy:
     {{- if .serverSideApply }}
     syncOptions:
diff --git a/argocd/app-of-apps/test/values.yaml b/argocd/app-of-apps/test/values.yaml
index 087f69c..d537777 100644
--- a/argocd/app-of-apps/test/values.yaml
+++ b/argocd/app-of-apps/test/values.yaml
@@ -56,6 +56,14 @@ applications:
     repoURL: https://git.2martens.de/2martens/cloud-configuration.git
     serverSideApply: true
     syncWave: 2
+    ignoreDifferences:
+      - group: ""
+        kind: PersistentVolume
+        name: prometheus-prometheus-pv-0
+        namespace: observability
+        jsonPointers:
+          - /spec/claimRef/resourceVersion
+          - /spec/claimRef/uid
   - name: prometheus-adapter
     project: default
     targetRevision: main