diff --git a/README.md b/README.md
index 83a767476286acba98d113b8fa7ab6b482751230..ebda4f641bc3b5e6a74cf72f4bc25a4237a73131 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ Conduct](https://gitlab.com/caosdb/caosdb/-/blob/dev/CODE_OF_CONDUCT.md).
   [documentation](https://docs.indiscale.com/caosdb-advanced-user-tools/), the
   preferred way is also a merge request as describe above (the documentation
   resides in `src/doc`). However, you can also create an issue for it.
-- You can also contact us at **info (AT) caosdb.de** and join the CaosDB
+- You can also contact us at **info (AT) caosdb.org** and join the CaosDB
   community on
   [#caosdb:matrix.org](https://matrix.to/#/!unwwlTfOznjEnMMXxf:matrix.org).
 
diff --git a/pytest.ini b/pytest.ini
deleted file mode 100644
index e65efaf9aaf061a8a1ec0040f87d682536fac4c2..0000000000000000000000000000000000000000
--- a/pytest.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[pytest]
-testpaths = unittests
-addopts = -vv
diff --git a/tox.ini b/tox.ini
index 11ee3202cbf416ffe388185a9a7c0f094bed0ad3..4b667c5e8e1728ca3b60535f08f4e4c2092dd1e6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,7 @@
 [tox]
 envlist=py38, py39, py310
 skip_missing_interpreters = true
+
 [testenv]
 deps=nose
     pandas
@@ -15,3 +16,8 @@ commands=py.test --cov=caosadvancedtools -vv {posargs}
 
 [flake8]
 max-line-length=100
+
+[pytest]
+testpaths = unittests
+addopts = -vv
+xfail_strict = True