diff --git a/kubernetes/apps/default/vikunja/app/helmrelease.yaml b/kubernetes/apps/default/vikunja/app/helmrelease.yaml
index c7882d2e0..db2c9ea77 100644
--- a/kubernetes/apps/default/vikunja/app/helmrelease.yaml
+++ b/kubernetes/apps/default/vikunja/app/helmrelease.yaml
@@ -64,7 +64,7 @@ spec:
           proxy:
             image:
               repository: caddy
-              tag: 2.7.6-alpine
+              tag: 2.8.4-alpine@sha256:eb37f58646a901dc7727cf448cae36daaefaba79de33b5058dab79aa4c04aefb
     service:
       app:
         controller: *app