diff --git a/examples/docker/swarm-service/docker-compose.yml b/examples/docker/swarm-service/docker-compose.yml
index 9bf2b0b9a..3ca2e1b10 100755
--- a/examples/docker/swarm-service/docker-compose.yml
+++ b/examples/docker/swarm-service/docker-compose.yml
@@ -4,8 +4,9 @@ version: "3.3"
 services:
   primary:
     hostname: 'primary'
-    image: crunchydata/crunchy-postgres:ubi8-15.2-0
+    image: crunchydata/crunchy-postgres:centos8-13.6-4.7.5
     environment:
+    - MODE=postgres
     - PGHOST=/tmp
     - MAX_CONNECTIONS=10
     - MAX_WAL_SENDERS=5
@@ -29,8 +30,9 @@ services:
         - node.labels.type == primary
         - node.role == worker
   replica:
-    image: crunchydata/crunchy-postgres:ubi8-15.2-0
+    image: crunchydata/crunchy-postgres:centos8-13.6-4.7.5
     environment:
+    - MODE=postgres
     - PGHOST=/tmp
     - MAX_CONNECTIONS=10
     - MAX_WAL_SENDERS=5