diff --git a/argocd/apps/wekan/wekan.yaml b/argocd/apps/wekan/wekan.yaml
index e852e2d..6868cfd 100644
--- a/argocd/apps/wekan/wekan.yaml
+++ b/argocd/apps/wekan/wekan.yaml
@@ -36,13 +36,13 @@ spec:
           value: local-path
         - name: mongodb.replicaCount
           value: '1'
-        - name: root_url
+        - name: ROOT_URL
           value: 'https://wekan.innovation-hub-niedersachsen.de'
-        - name: port
+        - name: PORT
           value: '80'
-        - name: mail_url
+        - name: MAIL_URL
           value: 'smtp://192.168.4.125:25'
-        - name: mail_from
+        - name: MAIL_FROM
           value: 'Wekan Innovation Hub <inno-net@zpd.polizei.niedersachsen.de>'
     chart: wekan
   destination: