diff --git a/geonode/documents/migrations/0038_alter_document_doc_url.py b/geonode/documents/migrations/0038_alter_document_doc_url.py
new file mode 100644
index 00000000000..8b29c3b31da
--- /dev/null
+++ b/geonode/documents/migrations/0038_alter_document_doc_url.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.22 on 2023-12-05 10:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('documents', '0037_delete_documentresourcelink'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='document',
+            name='doc_url',
+            field=models.URLField(blank=True, help_text='The URL of the document if it is external.', max_length=512, null=True, verbose_name='URL'),
+        ),
+    ]
diff --git a/geonode/documents/models.py b/geonode/documents/models.py
index 78292dfc8c9..d7650f5b0ae 100644
--- a/geonode/documents/models.py
+++ b/geonode/documents/models.py
@@ -47,7 +47,7 @@ class Document(ResourceBase):
     doc_url = models.URLField(
         blank=True,
         null=True,
-        max_length=255,
+        max_length=512,
         help_text=_("The URL of the document if it is external."),
         verbose_name=_("URL"),
     )