diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5a3b131..ed81dbb 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,10 +15,7 @@ jobs:
       matrix:
         include:
         - os: ubuntu-latest
-          python: 3.8
-          toxenv: py38
-        - os: ubuntu-latest
-          python: 3.9
+          python: '3.9'
           toxenv: py39
         - os: ubuntu-latest
           python: '3.10'
@@ -29,6 +26,9 @@ jobs:
         - os: ubuntu-latest
           python: '3.12'
           toxenv: py312
+        - os: ubuntu-latest
+          python: '3.13'
+          toxenv: py313
     runs-on: ${{ matrix.os }}
 
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index 55c52db..859c2c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ authors = [
 ]
 description = "Foobar example package."
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "MIT"}
 classifiers = [
     "License :: OSI Approved :: MIT License",
@@ -67,7 +67,7 @@ plugins = ["covdefaults"]
 omit = ["examples"]
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.12"
 check_untyped_defs = true
 disallow_any_generics = true
 disallow_incomplete_defs = true
@@ -89,7 +89,7 @@ allow_untyped_defs = true
 
 [tool.ruff]
 line-length = 79
-target-version = "py38"
+target-version = "py39"
 
 [tool.ruff.format]
 indent-style = "space"
diff --git a/tox.ini b/tox.ini
index 00c0db6..3250f1c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38, py39, py310, py311, py312, pre-commit, docs
+envlist = py39, py310, py311, py312, py313, pre-commit, docs
 
 [testenv]
 extras = dev