diff --git a/ui/public/assets/schema/groups/group.json b/ui/public/assets/schema/groups/group.json
index 7ea8998b6..0587fba01 100644
--- a/ui/public/assets/schema/groups/group.json
+++ b/ui/public/assets/schema/groups/group.json
@@ -20,7 +20,8 @@
         "validationRegex": {
             "title": "label.url-validation-regex",
             "description": "tooltip.url-validation-regex",
-            "type": "string"
+            "type": "string",
+            "maxLength": 255
         },
         "approversList": {
             "title": "label.approvers-list",