diff --git a/modules/docker/outline/postgres.tf b/modules/docker/outline/postgres.tf
index de6263b..39902db 100644
--- a/modules/docker/outline/postgres.tf
+++ b/modules/docker/outline/postgres.tf
@@ -1,5 +1,5 @@
 data "docker_registry_image" "postgres" {
-  name = "postgres:17.9"
+  name = "postgres:18.4"
 }
 
 resource "docker_image" "postgres" {