diff --git a/orsi-system/revfulop-calendar.yaml b/orsi-system/revfulop-calendar.yaml
index 5ce94cf..26c3fd9 100644
--- a/orsi-system/revfulop-calendar.yaml
+++ b/orsi-system/revfulop-calendar.yaml
@@ -38,6 +38,8 @@ spec:
         app.kubernetes.io/name: revfulop-calendar
         app.kubernetes.io/version: "1.0.0"
     spec:
+      securityContext:
+        fsGroup: 1000
       containers:
         - name: revfulop-calendar
           image: gitea.dooplex.hu/admin/revfulop-calendar:1.0.0