diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index de98b69..0ec4eda 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -27,15 +27,15 @@ jobs:
         - macos-latest
         - windows-latest
         python-version:
-        - '3.9'
         - '3.10'
         - '3.11'
         - '3.12'
         - '3.13'
         - '3.14'
-        - pypy-3.9
+        - '3.15'
         - pypy-3.10
         - pypy-3.11
+        - pypy-3.12
     steps:
     - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 37a7d47..8cd8b29 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -80,9 +80,9 @@
       }
     },
     {
-      "label": "Test Python 3.9",
+      "label": "Test Python 3.10",
       "type": "shell",
-      "command": "tox -e py39",
+      "command": "tox -e py310",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -93,9 +93,9 @@
       }
     },
     {
-      "label": "Test Python 3.10",
+      "label": "Test Python 3.11",
       "type": "shell",
-      "command": "tox -e py310",
+      "command": "tox -e py311",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -106,9 +106,9 @@
       }
     },
     {
-      "label": "Test Python 3.11",
+      "label": "Test Python 3.12",
       "type": "shell",
-      "command": "tox -e py311",
+      "command": "tox -e py312",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -119,9 +119,9 @@
       }
     },
     {
-      "label": "Test Python 3.12",
+      "label": "Test Python 3.13",
       "type": "shell",
-      "command": "tox -e py312",
+      "command": "tox -e py313",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -132,9 +132,9 @@
       }
     },
     {
-      "label": "Test Python 3.13",
+      "label": "Test Python 3.14",
       "type": "shell",
-      "command": "tox -e py313",
+      "command": "tox -e py314",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -145,9 +145,9 @@
       }
     },
     {
-      "label": "Test Python 3.14",
+      "label": "Test Python 3.15",
       "type": "shell",
-      "command": "tox -e py314",
+      "command": "tox -e py315",
       "group": {
         "kind": "test",
         "isDefault": false
@@ -177,12 +177,12 @@
     },
     {
       "dependsOn": [
-        "Test Python 3.9",
         "Test Python 3.10",
         "Test Python 3.11",
         "Test Python 3.12",
         "Test Python 3.13",
-        "Test Python 3.14"
+        "Test Python 3.14",
+        "Test Python 3.15"
       ],
       "label": "Run tests",
       "group": {
diff --git a/pyproject.toml b/pyproject.toml
index b871f6b..3c7ce7b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,12 +26,12 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
   "Topic :: Utilities",
@@ -42,7 +42,7 @@ keywords = [
   "cli",
   "tools",
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [project.scripts]
 pyclean = "pyclean.cli:main"
@@ -68,6 +68,9 @@ quote-style = "single"
 extend-select = ["ALL"]
 extend-ignore = ["ANN", "B904", "D", "FBT002", "INP001", "Q000", "UP"]
 
+[tool.ruff.lint.flake8-copyright]
+notice-rgx = "SPDX-FileCopyrightText: \\d{4}"
+
 [tool.ruff.lint.flake8-quotes]
 inline-quotes="single"
 
diff --git a/tests/test_main.py b/tests/test_main.py
index 829ce83..d0b7ea6 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -98,7 +98,7 @@ def test_quiet_logging(mock_descend, mock_logconfig):
 @patch('pyclean.main.suggest_debris_option')
 @patch('pyclean.runner.CleanupRunner.configure')
 @patch('pyclean.main.log')
-def test_report_failures(  # noqa: PLR0913
+def test_report_failures(  # noqa: PLR0913, PLR0917
     mock_log,
     mock_configure,
     mock_suggest,
diff --git a/tox.ini b/tox.ini
index 95167cc..fef8cbb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,8 +10,8 @@ envlist =
     lint
     types
     license
-    py3{9,10,11,12,13,14}
-    pypy3{9,10,11}
+    py3{10,11,12,13,14,15}
+    pypy3{10,11,12}
     package
     clean
 requires = virtualenv