diff --git a/api/audit/models.py b/api/audit/models.py
index 030b8f72ad81..cf9c71b69e74 100644
--- a/api/audit/models.py
+++ b/api/audit/models.py
@@ -144,7 +144,10 @@ def add_created_date(self) -> None:
         when="environment_document_updated",
         is_now=True,
     )
-    def process_environment_update(self):
+    def process_environment_update(self) -> None:
+        if not self.project:
+            return
+
         from environments.models import Environment
         from environments.tasks import process_environment_update
 
diff --git a/api/tests/unit/audit/test_unit_audit_models.py b/api/tests/unit/audit/test_unit_audit_models.py
index a6b49229b8f7..07d6ca67c8dd 100644
--- a/api/tests/unit/audit/test_unit_audit_models.py
+++ b/api/tests/unit/audit/test_unit_audit_models.py
@@ -1,3 +1,4 @@
+import pytest
 from pytest_mock import MockerFixture
 
 from audit.models import AuditLog
@@ -228,3 +229,15 @@ def test_creating_audit_logs_for_change_request_does_not_trigger_process_environ
     # Then
     process_environment_update.delay.assert_not_called()
     assert audit_log.created_date != environment.updated_at
+
+
+@pytest.mark.django_db
+def test_audit_log__organisation__empty_instance__return_expected() -> None:
+    # Given
+    audit_log = AuditLog.objects.create()
+
+    # When
+    organisation = audit_log.organisation
+
+    # Then
+    assert organisation is None