diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 197b6f1..433340c 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -49,7 +49,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/pyproject.toml b/pyproject.toml
index 4dcdad2..69b4454 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,12 +6,12 @@ authors = [
 description = "miscellaneous simple bioinformatics utilities and lookup tables"
 readme = "README.rst"
 license = { file="LICENSE.txt" }
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 classifiers = [
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "License :: OSI Approved :: Apache Software License",
     "Operating System :: OS Independent",
     "Topic :: Scientific/Engineering :: Bio-Informatics",
diff --git a/tox.ini b/tox.ini
index 8e4d4b6..bc3fea1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py39,py310
+envlist = py310,py311,py312
 isolated_build = True
 
 [testenv]