diff --git a/workspaces/models.py b/workspaces/models.py
index 7ec13a439..aa263afcb 100644
--- a/workspaces/models.py
+++ b/workspaces/models.py
@@ -616,7 +616,9 @@ def clean(self) -> None:
 
     @admin.display(description="Expired")
     def has_expired(self):
-        return timezone.now() - self.updated_at > timedelta(
+        if not self.updated_at:
+            return False
+        return (timezone.now() - self.updated_at) > timedelta(
             days=settings.WORKSPACE_INVITE_EXPIRY_DAYS
         )