diff --git a/Makefile b/Makefile
index 1286a61..633c83f 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ dev-setup:
 
 .PHONY: tests ## Run unit tests
 tests:
-	PYTHONPATH=. pytest -Werror graphene_django --cov=graphene_django -vv
+	PYTHONPATH=. pytest graphene_django --cov=graphene_django -vv
 
 .PHONY: format ## Format code
 format:
diff --git a/setup.cfg b/setup.cfg
index bd6d271..09dcf69 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -10,3 +10,7 @@ omit = */tests/*
 [tool:pytest]
 DJANGO_SETTINGS_MODULE = examples.django_test_settings
 addopts = --random-order
+filterwarnings =
+    error
+    # we can't do anything about the DeprecationWarning about typing.ByteString in graphql
+    default:'typing\.ByteString' is deprecated:DeprecationWarning:graphql\.pyutils\.is_iterable
diff --git a/tox.ini b/tox.ini
index 81c0572..9a9dc14 100644
--- a/tox.ini
+++ b/tox.ini
@@ -34,7 +34,7 @@ deps =
     django42: Django>=4.2,<4.3
     django50: Django>=5.0,<5.1
     djangomain: https://github.com/django/django/archive/main.zip
-commands = {posargs:pytest -Werror --cov=graphene_django graphene_django examples}
+commands = {posargs:pytest --cov=graphene_django graphene_django examples}
 
 [testenv:pre-commit]
 skip_install = true