diff --git a/main.tf b/main.tf
index 29c85b5..e261436 100644
--- a/main.tf
+++ b/main.tf
@@ -34,6 +34,15 @@ resource "hcloud_firewall" "default" {
     ]
     port = "3000"
   }
+  rule {
+    description = "postgres"
+    direction = "in"
+    protocol = "tcp"
+    source_ips = [
+      "0.0.0.0/0"
+    ]
+    port = "5432"
+  }
   rule {
     description = "http"
     direction = "in"