diff --git a/apps/code-kustomization.yaml b/apps/code-kustomization.yaml
index bd6071be35704255e62e1f0bb5f752e334962c15..e96ed2108cfc862ee3c053069e9b234a69700f76 100644
--- a/apps/code-kustomization.yaml
+++ b/apps/code-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-apps
diff --git a/apps/code/gitea-kustomization.yaml b/apps/code/gitea-kustomization.yaml
index d927d82713bf966576ba5f9d1d2827f991736597..12ceb543b63693c3d4ca0d0b04c8dc1d2a0a81c4 100644
--- a/apps/code/gitea-kustomization.yaml
+++ b/apps/code/gitea-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: gitea
diff --git a/apps/code/gitea/kustomization.yaml b/apps/code/gitea/kustomization.yaml
index b2fbee57466177a9232215528e40b3fbe97f64af..364152c769f916fe494ebac54c870918a97b54d9 100644
--- a/apps/code/gitea/kustomization.yaml
+++ b/apps/code/gitea/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - gitea-release.yaml
diff --git a/apps/do/do-test/kustomization.yaml b/apps/do/do-test/kustomization.yaml
index e1493311eebfdc916c699e926d9118a8be5cf30e..54362b7fcf624329f57ce958ee6e08ef1dd4d570 100644
--- a/apps/do/do-test/kustomization.yaml
+++ b/apps/do/do-test/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml
diff --git a/apps/do/vikunja-kustomization.yaml b/apps/do/vikunja-kustomization.yaml
index 2c0a2f1edff897ff933a67450f13224c3fe07c4c..332d5bcf26e7ef55bd7fc75444a1fcc17d3f3779 100644
--- a/apps/do/vikunja-kustomization.yaml
+++ b/apps/do/vikunja-kustomization.yaml
@@ -1,5 +1,5 @@
 
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: vikunja
diff --git a/apps/do/vikunja-test-kustomization.yaml b/apps/do/vikunja-test-kustomization.yaml
index c3290ed1ffb7929b868055ef7d94bd7ecb979e12..aafb0370469725b27d24be02d1e37bc0cb8a4f94 100644
--- a/apps/do/vikunja-test-kustomization.yaml
+++ b/apps/do/vikunja-test-kustomization.yaml
@@ -1,5 +1,5 @@
 
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: vikunja-test
diff --git a/apps/do/vikunja/kustomization.yaml b/apps/do/vikunja/kustomization.yaml
index dd476a0b23eb829c7a04e1512d417e1c3ac5a04f..ad6bfb6446fcec266c0b6a7a4a37323485147528 100644
--- a/apps/do/vikunja/kustomization.yaml
+++ b/apps/do/vikunja/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml
diff --git a/apps/forge-kustomization.yaml b/apps/forge-kustomization.yaml
index 89efa1751996510b93406be264f7d565715d6b88..8f0cbbad60043f818f9cfe385759bdd28d0f5840 100644
--- a/apps/forge-kustomization.yaml
+++ b/apps/forge-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-apps
diff --git a/apps/forge/forgejo-kustomization.yaml b/apps/forge/forgejo-kustomization.yaml
index e05618893a81726d9d82e609f323d09d7a2aaa8f..f77286c923fa8c962d7206e70747d5f26f8959ba 100644
--- a/apps/forge/forgejo-kustomization.yaml
+++ b/apps/forge/forgejo-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: forgejo
diff --git a/apps/generate-kustomizations.sh b/apps/generate-kustomizations.sh
index 1d4f2cc3646dc3c0d1b1b82d19d9e7532888bf72..7a5ce1a16963664dd0bf975d379970f6fb5764a0 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/v1beta2
+	{ echo 'apiVersion: kustomize.config.k8s.io/v1
 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 1f184f5045cc29a57dac1e5a2e0de2cd0dc66970..78839facf0756a1a35f2e16d0660c37e737f31cb 100644
--- a/apps/kustomization.yaml
+++ b/apps/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - ninja-kustomization.yaml
diff --git a/apps/ninja-kustomization.yaml b/apps/ninja-kustomization.yaml
index c7313fa11ccf9ba28a800304081a8e1ab08556c4..be0c331cccf2aa756b74e4aaf80bf9bce6061bbe 100644
--- a/apps/ninja-kustomization.yaml
+++ b/apps/ninja-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: add-ninja
diff --git a/apps/ninja/invoiceninja-kustomization.yaml b/apps/ninja/invoiceninja-kustomization.yaml
index 150c55db77b384bb348a67662b26c71a8869b937..afd3cfbc652c9a2b5844dcda74ef31aed0ad0dc8 100644
--- a/apps/ninja/invoiceninja-kustomization.yaml
+++ b/apps/ninja/invoiceninja-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: invoiceninja
diff --git a/apps/ninja/invoiceninja-secrets-kustomization.yaml b/apps/ninja/invoiceninja-secrets-kustomization.yaml
index 6dd992510d84e3c4bd75e38f7b8813fddc0b486f..93ba264e11c4533f423d76ea8820145bab3b149b 100644
--- a/apps/ninja/invoiceninja-secrets-kustomization.yaml
+++ b/apps/ninja/invoiceninja-secrets-kustomization.yaml
@@ -1,5 +1,5 @@
 ---
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: invoiceninja-secrets
diff --git a/apps/ninja/invoiceninja-secrets/kustomization.yaml b/apps/ninja/invoiceninja-secrets/kustomization.yaml
index 75e8b1e108995cfa8ef00be5613c95d208d10a0e..1fe405ce2663cc22ff36a3a7f243cd4e2576c520 100644
--- a/apps/ninja/invoiceninja-secrets/kustomization.yaml
+++ b/apps/ninja/invoiceninja-secrets/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - invoiceninja-variables.yaml
diff --git a/apps/ninja/invoiceninja/kustomization.yaml b/apps/ninja/invoiceninja/kustomization.yaml
index 166da554a1d573918e6c9991aace19a62226c357..bd82a0181f4fed513c8bcd654c2d8bf880b250dc 100644
--- a/apps/ninja/invoiceninja/kustomization.yaml
+++ b/apps/ninja/invoiceninja/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - invoiceninja-mariadb-pvc.yaml
diff --git a/apps/people/suitecrm/kustomization.yaml b/apps/people/suitecrm/kustomization.yaml
index cb44b7b0bd11586e40a8ea24f17b8dfef9305bd7..8e552e344dfe23d841b838c0733b14256ee0dbae 100644
--- a/apps/people/suitecrm/kustomization.yaml
+++ b/apps/people/suitecrm/kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.config.k8s.io/v1beta2
+apiVersion: kustomize.config.k8s.io/v1
 kind: Kustomization
 resources:
   - suitecrm-values-configmap.yaml
diff --git a/apps/support/zammad-kustomization.yaml b/apps/support/zammad-kustomization.yaml
index 3afbd0dbd094a14bb720a372c9253cbce0832c26..ebc080a5d5014e2115e594b35102c9aa007f49e4 100644
--- a/apps/support/zammad-kustomization.yaml
+++ b/apps/support/zammad-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: zammad
diff --git a/infrastructure/kustomizations/apps-kustomization.yaml b/infrastructure/kustomizations/apps-kustomization.yaml
index dab420d0b7bd52c6cac52e30084d68f5913f3d58..51f5e91764a9f7e10d33ccbaf25b5e796b634110 100644
--- a/infrastructure/kustomizations/apps-kustomization.yaml
+++ b/infrastructure/kustomizations/apps-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-apps
diff --git a/infrastructure/kustomizations/namespace-kustomization.yaml b/infrastructure/kustomizations/namespace-kustomization.yaml
index 02a4676ad5e97094ef48cfbbd0dcab7ac9687b53..7eaca88127a511c20871ce5dd2af3758fbe3c3a8 100644
--- a/infrastructure/kustomizations/namespace-kustomization.yaml
+++ b/infrastructure/kustomizations/namespace-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-namespace
diff --git a/infrastructure/kustomizations/overrides-kustomization.yaml b/infrastructure/kustomizations/overrides-kustomization.yaml
index d2ef7693fb490cf26da1998fabde6eb492879754..378f1eff528b0f61192ea5db1dee4febee71d549 100644
--- a/infrastructure/kustomizations/overrides-kustomization.yaml
+++ b/infrastructure/kustomizations/overrides-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-overrides
diff --git a/infrastructure/kustomizations/sources-kustomization.yaml b/infrastructure/kustomizations/sources-kustomization.yaml
index c6d276bc01d7825f8816da419f03a2527f38c379..7dd03764924b5997f028e36984ca84d7453f6f93 100644
--- a/infrastructure/kustomizations/sources-kustomization.yaml
+++ b/infrastructure/kustomizations/sources-kustomization.yaml
@@ -1,4 +1,4 @@
-apiVersion: kustomize.toolkit.fluxcd.io/v1
+apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization
 metadata:
   name: stackspout-sources