diff --git a/pyproject.toml b/pyproject.toml
index e3dcb2fa547..cedda0121b7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ dependencies = [
   "django-guid>=3.3,<=3.5.1",
   "django-import-export>=2.9,<5.0",
   "django-lifecycle>=1.0,<=1.2.4",
-  "djangorestframework>=3.14.0,<=3.15.2",
+  "djangorestframework>=3.14.0,<3.18",  # API-stable z-Streams. https://www.django-rest-framework.org/community/release-notes/
   "djangorestframework-queryfields>=1.0,<=1.1.0",
   "drf-access-policy>=1.1.2,<1.5.1",
   "drf-nested-routers>=0.93.4,<=0.94.1",