diff --git a/apps/code/gitea/kustomization.yaml b/apps/code/gitea/kustomization.yaml
index 364152c..938a8c1 100644
--- a/apps/code/gitea/kustomization.yaml
+++ b/apps/code/gitea/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - gitea-release.yaml
diff --git a/apps/do/do-test/kustomization.yaml b/apps/do/do-test/kustomization.yaml
index 54362b7..4aa48ff 100644
--- a/apps/do/do-test/kustomization.yaml
+++ b/apps/do/do-test/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml
diff --git a/apps/do/vikunja/kustomization.yaml b/apps/do/vikunja/kustomization.yaml
index ad6bfb6..8520b27 100644
--- a/apps/do/vikunja/kustomization.yaml
+++ b/apps/do/vikunja/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml
diff --git a/apps/generate-kustomizations.sh b/apps/generate-kustomizations.sh
index 7a5ce1a..857f418 100755
--- a/apps/generate-kustomizations.sh
+++ b/apps/generate-kustomizations.sh
@@ -2,7 +2,7 @@
 # Generates kubernetes kustomizations
 if test $# -gt 0
 then dir=$1
-	{ echo 'apiVersion: kustomize.config.k8s.io/v1
+	{ echo 'apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:'
 	find $dir -maxdepth 1 -type f -name "*.yaml" -not -name "kustomization.yaml" -printf "  - %f\n"; } | tee $dir/kustomization.yaml
diff --git a/apps/kustomization.yaml b/apps/kustomization.yaml
index 78839fa..f6e32ef 100644
--- a/apps/kustomization.yaml
+++ b/apps/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - ninja-kustomization.yaml
diff --git a/apps/ninja/invoiceninja-secrets/kustomization.yaml b/apps/ninja/invoiceninja-secrets/kustomization.yaml
index 1fe405c..01e50f0 100644
--- a/apps/ninja/invoiceninja-secrets/kustomization.yaml
+++ b/apps/ninja/invoiceninja-secrets/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - invoiceninja-variables.yaml
diff --git a/apps/ninja/invoiceninja/kustomization.yaml b/apps/ninja/invoiceninja/kustomization.yaml
index bd82a01..bed32ae 100644
--- a/apps/ninja/invoiceninja/kustomization.yaml
+++ b/apps/ninja/invoiceninja/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - invoiceninja-mariadb-pvc.yaml
diff --git a/apps/people/suitecrm/kustomization.yaml b/apps/people/suitecrm/kustomization.yaml
index 8e552e3..6ebe0bc 100644
--- a/apps/people/suitecrm/kustomization.yaml
+++ b/apps/people/suitecrm/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - suitecrm-values-configmap.yaml