diff --git a/setup.py b/setup.py
index a5e30300..f16a0232 100644
--- a/setup.py
+++ b/setup.py
@@ -16,8 +16,12 @@
         "Operating System :: POSIX :: Linux",
         "License :: OSI Approved :: GNU General Public License v2 (GPLv2)",
         "Topic :: System :: Monitoring",
-        "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
+        "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",
         "Development Status :: 3 - Alpha",
         "Topic :: System :: Logging",
         "Intended Audience :: Developers",
@@ -30,5 +34,5 @@
     packages=find_packages(),
     include_package_data=True,
     zip_safe=False,
-    install_requires=["pyserial==3.*", "pint==0.20.*"],
+    install_requires=["pyserial==3.*", "pint==0.24.*"],
 )
diff --git a/tox.ini b/tox.ini
index 20476082..6fe55f43 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,14 +1,15 @@
 [tox]
 envlist =
-    py{38,39,310,311},
+    py{39,310,311,312,313},
     coverage
 
 [gh-actions]
 python =
-    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
+    3.13: py313
 
 [testenv]
 usedevelop = true