diff --git a/python-trio.changes b/python-trio.changes
index 1a29b75..324708f 100644
--- a/python-trio.changes
+++ b/python-trio.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jan 11 10:56:14 UTC 2024 - Ben Greiner <code@bnavigator.de>
+
+- We don't need isort for the tests: Avoid it for Ring1
+- Clean dependencies
+
 -------------------------------------------------------------------
 Wed Jan  3 10:35:04 UTC 2024 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-trio.spec b/python-trio.spec
index 41fc8b0..4596b7f 100644
--- a/python-trio.spec
+++ b/python-trio.spec
@@ -32,34 +32,27 @@ Summary:        Python async/await-native I/O library
 License:        Apache-2.0 OR MIT
 URL:            https://github.com/python-trio/trio
 Source:         https://files.pythonhosted.org/packages/source/t/trio/trio-%{version}.tar.gz
-BuildRequires:  %{python_module attrs >= 20.1.0}
+BuildRequires:  %{python_module base >= 3.8}
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module setuptools}
-BuildRequires:  %{python_module sortedcontainers}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  netcfg
 BuildRequires:  python-rpm-macros
-Requires:       python-attrs >= 19.2.0
+Requires:       python-attrs >= 20.1.0
 Requires:       python-idna
 Requires:       python-outcome
 Requires:       python-sniffio >= 1.3.0
 Requires:       python-sortedcontainers
 BuildArch:      noarch
-%if 0%{?suse_version} > 1500
-Requires:       (python-exceptiongroup if python-base < 3.11)
+%if 0%{?python_version_nodots} < 311
+Requires:       python-exceptiongroup
 %endif
 %if %{with test}
 BuildRequires:  %{python_module astor >= 0.8}
 BuildRequires:  %{python_module async_generator >= 1.9}
-BuildRequires:  %{python_module base >= 3.8}
-BuildRequires:  %{python_module idna}
-BuildRequires:  %{python_module isort}
-BuildRequires:  %{python_module outcome}
 BuildRequires:  %{python_module pyOpenSSL}
 BuildRequires:  %{python_module pytest >= 5.0}
-# for protocol specifications
-BuildRequires:  %{python_module sniffio >= 1.3.0}
 BuildRequires:  %{python_module trio = %{version}}
 BuildRequires:  %{python_module trustme}
 BuildRequires:  %{python_module yapf >= 0.27.0}
@@ -101,7 +94,7 @@ donttest+=" or test_close_at_bad_time_for_send_all"
 donttest+=" or test_local_address_real"
 # Don't run lint tests
 donttest+=" or run_black or run_ruff or lint_failure or test_process"
-%pytest -m 'not redistributors_should_skip' -k "not ($donttest)" --pyargs trio -p trio._tests.pytest_plugin
+%pytest -m 'not redistributors_should_skip' -k "not ($donttest)" --pyargs trio -p trio._tests.pytest_plugin --skip-optional-imports
 %endif
 
 %if %{without test}