diff --git a/python-tomli-w.spec b/python-tomli-w.spec
index 1cb4b1f..b705703 100644
--- a/python-tomli-w.spec
+++ b/python-tomli-w.spec
@@ -37,7 +37,10 @@ sed -i '/pytest-randomly/d' tests/requirements.txt
 
 
 %generate_buildrequires
-%pyproject_buildrequires %{?with_check:-t}
+# We intentionally don't use tox here to avoid a dependency on it in ELN/RHEL,
+# the tox deps only list -r tests/requirements.txt anyway and sometimes
+# did not run any tests at all.
+%pyproject_buildrequires %{?with_check:tests/requirements.txt}
 
 
 %build
@@ -52,7 +55,7 @@ sed -i '/pytest-randomly/d' tests/requirements.txt
 %check
 %pyproject_check_import tomli_w
 %if %{with check}
-%tox
+%pytest -v
 %endif