diff --git a/.github/workflows/checkpr.yml b/.github/workflows/checkpr.yml
index 6d2edb5..e70a995 100644
--- a/.github/workflows/checkpr.yml
+++ b/.github/workflows/checkpr.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13.0-rc.3"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 369f96d..6ef4994 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13.0-rc.3"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/README.md b/README.md
index a4205ec..716b500 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ Contributions welcome - please refer to [CONTRIBUTING.MD](https://github.com/sem
 [![PyPI version](https://img.shields.io/pypi/v/pyspartn)](https://pypi.org/project/pyspartn/)
 ![PyPI downloads](https://img.shields.io/pypi/dm/pyspartn.svg?style=flat)
 
-`pyspartn` is compatible with Python 3.8 - 3.13*¹ ²*.
+`pyspartn` is compatible with Python 3.9 - 3.13*¹ ²*.
 
 In the following, `python3` & `pip` refer to the Python 3 executables. You may need to substitute `python` for `python3`, depending on your particular environment (*on Windows it's generally `python`*). **It is strongly recommended that** the Python 3 binaries (\Scripts or /bin) and site_packages directories are included in your PATH (*most standard Python 3 installation packages will do this automatically if you select the 'Add to PATH' option during installation*).
 
diff --git a/pyproject.toml b/pyproject.toml
index 0f0c2bc..f7f8d4e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,6 @@ classifiers = [
     "Intended Audience :: Science/Research",
     "Intended Audience :: End Users/Desktop",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -55,10 +54,10 @@ test = [
 ]
 
 [tool.black]
-target-version = ['py38']
+target-version = ['py39']
 
 [tool.isort]
-py_version = 38
+py_version = 39
 profile = "black"
 
 [tool.bandit]
@@ -69,7 +68,7 @@ skips = []
 jobs = 0
 reports = "y"
 recursive = "y"
-py-version = "3.8"
+py-version = "3.9"
 fail-under = "9.8"
 fail-on = "E,F"
 clear-cache-post-run = "y"