diff --git a/argocd/apps/mastodon.yaml b/argocd/apps/mastodon.yaml
index f2ad88e..cf7b37a 100644
--- a/argocd/apps/mastodon.yaml
+++ b/argocd/apps/mastodon.yaml
@@ -81,7 +81,7 @@ spec:
           password: change-me
 
         redis:
-          hostname: redis.redis.svc.cluster.local
+          hostname: redis-master.redis.svc.cluster.local
           port: 6379
           password: change-me