diff --git a/php/containers-schema.json b/php/containers-schema.json
index d039d205..96789207 100644
--- a/php/containers-schema.json
+++ b/php/containers-schema.json
@@ -40,7 +40,7 @@
 					},
 					"display_name": {
 						"type": "string",
-						"pattern": "^[A-Za-z 0-9]+$"
+						"pattern": "^[A-Za-z 0-9-]+$"
 					},
 					"environment": {
 						"type": "array",
@@ -74,7 +74,7 @@
 								},
 								"port_number": {
 									"type": "string",
-									"pattern": "^(%[A-Z_]+%)$"
+									"pattern": "^(%[A-Z_]+%|[0-9]{1,5})$"
 								},
 								"protocol": {
 									"type": "string",