diff --git a/tox.ini b/tox.ini
index 0bcefc5..3accf96 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    tests-py{39,310,311,312}
+    tests-py{310,311,312,313,314}
     linting
     coverage
     type_check
@@ -10,7 +10,7 @@ skipsdist = True
 [testenv]
 commands = python -m pip install --upgrade pip
 
-[testenv:tests-py{312,313}]
+[testenv:tests-py{312,313,314}]
 # the tests environment is called by the Github action that runs the unit tests
 deps =
     -r requirements.txt
@@ -31,7 +31,7 @@ commands =
 [testenv:linting]
 # the linting environment is called by the Github Action that runs the linter
 deps =
-    {[testenv:tests-py312]deps}
+    {[testenv:tests-py314]deps}
     .[linting]
     # add your fixtures like e.g. pytest_datafiles here
 setenv = PYTHONPATH = {toxinidir}/src
@@ -44,7 +44,7 @@ commands =
 # the type_check environment checks the type hints using mypy
 setenv = PYTHONPATH = {toxinidir}/src
 deps =
-    {[testenv:tests-py312]deps}
+    {[testenv:tests-py314]deps}
     .[type_check]
 commands =
     mypy --show-error-codes src/generics
@@ -55,7 +55,7 @@ commands =
 # the coverage environment is called by the Github Action that runs the coverage measurement
 changedir = unittests
 deps =
-    {[testenv:tests-py312]deps}
+    {[testenv:tests-py314]deps}
     .[coverage]
 setenv = PYTHONPATH = {toxinidir}/src
 commands =
@@ -67,7 +67,7 @@ commands =
 [testenv:dev]
 # the dev environment contains everything you need to start developing on your local machine.
 deps =
-    {[testenv:tests-py312]deps}
+    {[testenv:tests-py314]deps}
     {[testenv:linting]deps}
     {[testenv:type_check]deps}
     {[testenv:coverage]deps}