diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index ca3d149..8661b3d 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -47,6 +47,7 @@ updates:
       - "/kubernetes/home/home-assisant"
       - "/kubernetes/home/zigbee2mqtt"
       - "/kubernetes/infrastructure/authentik"
+      - "/kubernetes/infrastructure/mail/stalwart"
       - "/kubernetes/personal/linkwarden"
       - "/kubernetes/personal/notesnook"
       - "/kubernetes/personal/photoprism"
diff --git a/docker/infrastructure/mail/stalwart/docker-compose.yml b/docker/infrastructure/mail/stalwart/docker-compose.yml
index ddff587..006df07 100644
--- a/docker/infrastructure/mail/stalwart/docker-compose.yml
+++ b/docker/infrastructure/mail/stalwart/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   stalwart:
-    image: stalwartlabs/stalwart:v0.16.10
+    image: stalwartlabs/stalwart:v0.15.5
     container_name: stalwart
     networks:
       - default