diff --git a/fix-tests.patch b/fix-tests.patch
index 83da6ad..179cf7e 100644
--- a/fix-tests.patch
+++ b/fix-tests.patch
@@ -19,14 +19,6 @@ diff --git a/pyproject.toml b/pyproject.toml
 index 6920d19..53326bc 100644
 --- a/pyproject.toml
 +++ b/pyproject.toml
-@@ -201,6 +195,7 @@ filterwarnings = [
-   "error",
-   "ignore:unclosed database in <sqlite3.Connection object at:ResourceWarning",
-   "ignore:unclosed file <_io.TextIOWrapper:ResourceWarning",
-+  "ignore:subprocess \\d+ is still running:ResourceWarning",
- ]
- tmp_path_retention_policy = "failed"
- 
 @@ -222,9 +217,6 @@ report.omit = [
    "tests/type_check/*",
  ]
diff --git a/python-tox.spec b/python-tox.spec
index 2d0b59f..7d10c0a 100644
--- a/python-tox.spec
+++ b/python-tox.spec
@@ -20,7 +20,7 @@
 %undefine _py3_shebang_s
 
 Name:           python-tox
-Version:        4.34.1
+Version:        4.35.0
 Release:        %autorelease
 Summary:        Virtualenv-based automation of test activities
 
@@ -32,7 +32,6 @@ Source:         %{pypi_source tox}
 # Remove coverage options.
 # Adjust virtualenv environment variables to make it work with our patched virtualenv.
 # Adjust setuptools-version specific ifs to check for setuptools version rather than Python version.
-# Ignore ResourceWarning: subprocess ... is still running (happens arbitrarily, possibly due to pytest-xdist usage)
 Patch:          fix-tests.patch
 
 BuildArch:      noarch
@@ -159,6 +158,14 @@ k="${k-}${k+ and }not test_tox_install_pkg_sdist"
 test -z $VIRTUALENV_WHEEL || k="${k-}${k+ and }not test_result_json_sequential"
 %endif
 
+# Skip tests only working with packaging 26+
+# Adjusted upstream in https://github.com/tox-dev/tox/pull/3673
+%if %{pyversion packaging} < v"26"
+k="${k-}${k+ and }not (test_req_file and name-extra-protocol)"
+k="${k-}${k+ and }not (test_req_file and whitespace and around)"
+k="${k-}${k+ and }not test_dependency_groups_bad_requirement"
+%endif
+
 # The following tests either need internet connection or installed tox
 # so we only run them on the CI.
 %if %{without ci_tests}
diff --git a/sources b/sources
index 6e29723..16136e2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (tox-4.34.1.tar.gz) = ec7ffdf372d1794f659c36f9a5cfc41da18e23532323fbf9a7a21fe9b9ed71ce38f801086ec64de9a8aaea0a15e7b282e24175c7f8ae31930b63fab5dbd57beb
+SHA512 (tox-4.35.0.tar.gz) = 13134511a53b1ba794f6821886655e2421ef0d668238d65779dc10a13bab23e5711f11aefdb99c7723c78f3558032df5cb78c5fe2c90e66b067f9ce325a60225