diff --git a/epdb/views.py b/epdb/views.py
index 2a2e392f..fa334be6 100644
--- a/epdb/views.py
+++ b/epdb/views.py
@@ -1295,11 +1295,15 @@ def package(request, package_uuid):
         users = users.filter(is_active=True).exclude(username="anonymous")
 
         group_perms = GroupPackagePermission.objects.filter(package=current_package)
-        groups = Group.objects.exclude(
-            id__in=GroupPackagePermission.objects.filter(package=current_package).values_list(
-                "group_id", flat=True
+
+        if current_package.classification_level == current_package.Classification.SECRET:
+            groups = Group.objects.none()
+        else:
+            groups = Group.objects.exclude(
+                id__in=GroupPackagePermission.objects.filter(package=current_package).values_list(
+                    "group_id", flat=True
+                )
             )
-        )
 
         context["users"] = users
         context["groups"] = groups