diff --git a/basic/apps/ninja/invoiceninja-values-configmap.yaml b/basic/apps/ninja/invoiceninja-values-configmap.yaml
index b5069f3..8e96aee 100644
--- a/basic/apps/ninja/invoiceninja-values-configmap.yaml
+++ b/basic/apps/ninja/invoiceninja-values-configmap.yaml
@@ -7,7 +7,7 @@ data:
   values.yaml: |
     # https://github.com/invoiceninja/dockerfiles/blob/master/charts/invoiceninja/values.yaml
     image:
-      tag: 5.5.31
+      tag: 5.5
     ingress:
       enabled: true
       hostname: "ninja.${domain}"
diff --git a/templates/stackspin-invoiceninja-variables.yaml.jinja b/templates/stackspin-invoiceninja-variables.yaml.jinja
index 403ab59..9f0defa 100644
--- a/templates/stackspin-invoiceninja-variables.yaml.jinja
+++ b/templates/stackspin-invoiceninja-variables.yaml.jinja
@@ -3,6 +3,7 @@ kind: Secret
 metadata:
   name: stackspin-invoiceninja-variables
 data:
+  app_key: "{{ 32 | generate_password | b64encode }}"
   password: "{{ 32 | generate_password | b64encode }}"
   redis_password: "{{ 32 | generate_password | b64encode }}"
   mariadb_password: "{{ 32 | generate_password | b64encode }}"