diff --git a/packages/apps/kubernetes/templates/helmreleases/cilium.yaml b/packages/apps/kubernetes/templates/helmreleases/cilium.yaml
index 14577407..4f23ed21 100644
--- a/packages/apps/kubernetes/templates/helmreleases/cilium.yaml
+++ b/packages/apps/kubernetes/templates/helmreleases/cilium.yaml
@@ -1,4 +1,4 @@
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: {{ .Release.Name }}-cilium
diff --git a/packages/apps/kubernetes/templates/helmreleases/csi.yaml b/packages/apps/kubernetes/templates/helmreleases/csi.yaml
index 55169278..5ced4163 100644
--- a/packages/apps/kubernetes/templates/helmreleases/csi.yaml
+++ b/packages/apps/kubernetes/templates/helmreleases/csi.yaml
@@ -1,4 +1,4 @@
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: {{ .Release.Name }}-csi
diff --git a/packages/apps/tenant/templates/etcd.yaml b/packages/apps/tenant/templates/etcd.yaml
index 917cf4b4..17b66683 100644
--- a/packages/apps/tenant/templates/etcd.yaml
+++ b/packages/apps/tenant/templates/etcd.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.etcd }}
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: etcd
diff --git a/packages/apps/tenant/templates/ingress.yaml b/packages/apps/tenant/templates/ingress.yaml
index 7c413db5..b93ae0fa 100644
--- a/packages/apps/tenant/templates/ingress.yaml
+++ b/packages/apps/tenant/templates/ingress.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.ingress }}
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: ingress
diff --git a/packages/apps/tenant/templates/monitoring.yaml b/packages/apps/tenant/templates/monitoring.yaml
index d0db03b5..93772546 100644
--- a/packages/apps/tenant/templates/monitoring.yaml
+++ b/packages/apps/tenant/templates/monitoring.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.monitoring }}
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: monitoring
diff --git a/packages/core/fluxcd/Makefile b/packages/core/fluxcd/Makefile
index 15494d2d..f8bab3e7 100644
--- a/packages/core/fluxcd/Makefile
+++ b/packages/core/fluxcd/Makefile
@@ -7,11 +7,11 @@ show:
 	helm template -n $(NAMESPACE) $(NAME) . --no-hooks --dry-run=server $(API_VERSIONS_FLAGS)
 
 apply:
-	helm template -n $(NAMESPACE) $(NAME) . --no-hooks -f valuesFile.yaml \
+	helm template -n $(NAMESPACE) $(NAME) . --no-hooks -f valuesFile.yaml -f flux-customizations.yaml \
 		--dry-run=server $(API_VERSIONS_FLAGS) | kubectl apply -n $(NAMESPACE) -f-
 
 diff:
-	helm template -n $(NAMESPACE) $(NAME) . --no-hooks -f valuesFile.yaml \
+	helm template -n $(NAMESPACE) $(NAME) . --no-hooks -f valuesFile.yaml -f flux-customizations.yaml \
 		--dry-run=server $(API_VERSIONS_FLAGS) | kubectl diff -n $(NAMESPACE) -f-
 
 update:
diff --git a/packages/core/fluxcd/flux-customizations.yaml b/packages/core/fluxcd/flux-customizations.yaml
new file mode 100644
index 00000000..faacac59
--- /dev/null
+++ b/packages/core/fluxcd/flux-customizations.yaml
@@ -0,0 +1,35 @@
+fluxInstance:
+  kustomize:
+    patches:
+      - target:
+          kind: Deployment
+          name: "(kustomize-controller|helm-controller|source-controller)"
+        patch: |
+          - op: add
+            path: /spec/template/spec/containers/0/args/-
+            value: --concurrent=20
+          - op: add
+            path: /spec/template/spec/containers/0/args/-
+            value: --requeue-dependency=5s
+          - op: replace
+            path: /spec/template/spec/containers/0/resources/limits
+            value:
+              cpu: 2000m
+              memory: 2048Mi
+      - target:
+          kind: Deployment
+          name: source-controller
+        patch: |
+          - op: add
+            path: /spec/template/spec/containers/0/args/-
+            value: --storage-adv-addr=source-controller
+          - op: add
+            path: /spec/template/spec/containers/0/args/-
+            value: --events-addr=http://notification-controller/
+      - target:
+          kind: Deployment
+          name: (kustomize-controller|helm-controller|image-reflector-controller|image-automation-controller)
+        patch: |
+          - op: add
+            path: /spec/template/spec/containers/0/args/-
+            value: --events-addr=http://notification-controller/
diff --git a/packages/core/fluxcd/templates/flux-instance.yaml b/packages/core/fluxcd/templates/flux-instance.yaml
index b3b08d08..12999f66 100644
--- a/packages/core/fluxcd/templates/flux-instance.yaml
+++ b/packages/core/fluxcd/templates/flux-instance.yaml
@@ -3,8 +3,12 @@ kind: FluxInstance
 metadata:
   name: flux
 spec:
+  {{- with .Values.fluxInstance.cluster }}
   cluster:
-    domain: {{ .Values.fluxInstance.cluster.domain }}
+    {{- with .domain }}
+    domain: {{ . }}
+    {{- end }}
+  {{- end }}
   distribution:
     version: {{ .Values.fluxInstance.distribution.version }}
     registry: {{ .Values.fluxInstance.distribution.registry }}
@@ -12,4 +16,7 @@ spec:
   {{- if .Values.fluxInstance.components }}
     {{- toYaml .Values.fluxInstance.components | nindent 4 }}
   {{- end }}
-
+  kustomize:
+  {{- if .Values.fluxInstance.kustomize }}
+    {{- toYaml .Values.fluxInstance.kustomize | nindent 4 }}
+  {{- end }}
\ No newline at end of file
diff --git a/packages/core/fluxcd/values.yaml b/packages/core/fluxcd/values.yaml
index 9650a9b9..8e13df1c 100644
--- a/packages/core/fluxcd/values.yaml
+++ b/packages/core/fluxcd/values.yaml
@@ -1,8 +1,8 @@
 fluxInstance:
-  cluster:
-    domain: cozy.local
+  # cluster:
+  #   domain: cozy.local
   distribution:
-    version: 2.2.x
+    version: 2.3.x
     registry: ghcr.io/fluxcd
   components:
     - source-controller
@@ -10,4 +10,4 @@ fluxInstance:
     - helm-controller
     - notification-controller
     - image-reflector-controller
-    - image-automation-controller
+    - image-automation-controller
\ No newline at end of file
diff --git a/packages/core/platform/bundles/paas-full.yaml b/packages/core/platform/bundles/paas-full.yaml
index 6ee2ad41..a39931a1 100644
--- a/packages/core/platform/bundles/paas-full.yaml
+++ b/packages/core/platform/bundles/paas-full.yaml
@@ -153,8 +153,8 @@ releases:
   chart: cozy-dashboard
   namespace: cozy-dashboard
   dependsOn: [cilium,kubeovn]
-  {{- if .Capabilities.APIVersions.Has "source.toolkit.fluxcd.io/v1beta2" }}
-  {{- with (lookup "source.toolkit.fluxcd.io/v1beta2" "HelmRepository" "cozy-public" "").items }}
+  {{- if .Capabilities.APIVersions.Has "source.toolkit.fluxcd.io/v1" }}
+  {{- with (lookup "source.toolkit.fluxcd.io/v1" "HelmRepository" "cozy-public" "").items }}
   values:
     kubeapps:
       redis:
diff --git a/packages/core/platform/bundles/paas-hosted.yaml b/packages/core/platform/bundles/paas-hosted.yaml
index a9c33818..5d6ce1a5 100644
--- a/packages/core/platform/bundles/paas-hosted.yaml
+++ b/packages/core/platform/bundles/paas-hosted.yaml
@@ -91,8 +91,8 @@ releases:
   chart: cozy-dashboard
   namespace: cozy-dashboard
   dependsOn: []
-  {{- if .Capabilities.APIVersions.Has "source.toolkit.fluxcd.io/v1beta2" }}
-  {{- with (lookup "source.toolkit.fluxcd.io/v1beta2" "HelmRepository" "cozy-public" "").items }}
+  {{- if .Capabilities.APIVersions.Has "source.toolkit.fluxcd.io/v1" }}
+  {{- with (lookup "source.toolkit.fluxcd.io/v1" "HelmRepository" "cozy-public" "").items }}
   values:
     kubeapps:
       redis:
diff --git a/packages/core/platform/templates/apps.yaml b/packages/core/platform/templates/apps.yaml
index 2ba4f8ed..073edbdb 100644
--- a/packages/core/platform/templates/apps.yaml
+++ b/packages/core/platform/templates/apps.yaml
@@ -3,8 +3,8 @@
 {{- $bundle := tpl (.Files.Get (printf "bundles/%s.yaml" $bundleName)) . | fromYaml }}
 {{- $host := "example.org" }}
 {{- $tenantRoot := list }}
-{{- if .Capabilities.APIVersions.Has "helm.toolkit.fluxcd.io/v2beta2" }}
-{{- $tenantRoot = lookup "helm.toolkit.fluxcd.io/v2beta2" "HelmRelease" "tenant-root" "tenant-root" }}
+{{- if .Capabilities.APIVersions.Has "helm.toolkit.fluxcd.io/v2" }}
+{{- $tenantRoot = lookup "helm.toolkit.fluxcd.io/v2" "HelmRelease" "tenant-root" "tenant-root" }}
 {{- end }}
 {{- if and $tenantRoot $tenantRoot.spec $tenantRoot.spec.values $tenantRoot.spec.values.host }}
 {{- $host = $tenantRoot.spec.values.host }}
@@ -22,7 +22,7 @@ metadata:
     namespace.cozystack.io/host: "{{ $host }}"
   name: tenant-root
 ---
-apiVersion: helm.toolkit.fluxcd.io/v2beta2
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: tenant-root
diff --git a/packages/core/platform/templates/helmreleases.yaml b/packages/core/platform/templates/helmreleases.yaml
index 5834c0be..bf7e1748 100644
--- a/packages/core/platform/templates/helmreleases.yaml
+++ b/packages/core/platform/templates/helmreleases.yaml
@@ -12,7 +12,7 @@
 {{- range $x := $bundle.releases }}
 {{- if not (has $x.name $disabledComponents) }}
 ---
-apiVersion: helm.toolkit.fluxcd.io/v2beta2
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: {{ $x.name }}
diff --git a/packages/core/platform/templates/helmrepos.yaml b/packages/core/platform/templates/helmrepos.yaml
index 3e061e41..69f77534 100644
--- a/packages/core/platform/templates/helmrepos.yaml
+++ b/packages/core/platform/templates/helmrepos.yaml
@@ -1,5 +1,5 @@
 ---
-apiVersion: source.toolkit.fluxcd.io/v1beta2
+apiVersion: source.toolkit.fluxcd.io/v1
 kind: HelmRepository
 metadata:
   name: cozystack-system
@@ -10,7 +10,7 @@ spec:
   interval: 5m0s
   url: http://cozystack.cozy-system.svc/repos/system
 ---
-apiVersion: source.toolkit.fluxcd.io/v1beta2
+apiVersion: source.toolkit.fluxcd.io/v1
 kind: HelmRepository
 metadata:
   name: cozystack-apps
@@ -22,7 +22,7 @@ spec:
   interval: 5m0s
   url: http://cozystack.cozy-system.svc/repos/apps
 ---
-apiVersion: source.toolkit.fluxcd.io/v1beta2
+apiVersion: source.toolkit.fluxcd.io/v1
 kind: HelmRepository
 metadata:
   name: cozystack-extra
diff --git a/packages/extra/ingress/templates/nginx-ingress.yaml b/packages/extra/ingress/templates/nginx-ingress.yaml
index 816327f0..43a3a9a6 100644
--- a/packages/extra/ingress/templates/nginx-ingress.yaml
+++ b/packages/extra/ingress/templates/nginx-ingress.yaml
@@ -1,4 +1,4 @@
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: ingress-nginx
diff --git a/packages/extra/monitoring/templates/oncall/oncall-release.yaml b/packages/extra/monitoring/templates/oncall/oncall-release.yaml
index 46d124e4..48416776 100644
--- a/packages/extra/monitoring/templates/oncall/oncall-release.yaml
+++ b/packages/extra/monitoring/templates/oncall/oncall-release.yaml
@@ -1,7 +1,7 @@
 {{- if .Values.oncall.enabled }}
 {{- $myNS := lookup "v1" "Namespace" "" .Release.Namespace }}
 {{- $host := index $myNS.metadata.annotations "namespace.cozystack.io/host" }}
-apiVersion: helm.toolkit.fluxcd.io/v2beta1
+apiVersion: helm.toolkit.fluxcd.io/v2
 kind: HelmRelease
 metadata:
   name: grafana-oncall