diff --git a/pyproject.toml b/pyproject.toml
index cd32a1bb..b1406601 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,6 +27,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Scientific/Engineering :: GIS",
     "Topic :: Database",
 ]
diff --git a/tox.ini b/tox.ini
index 6cc0c57d..221f6402 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 requires =
     tox>=4
-env_list = py{39,310,311,312}
+env_list = py{39,310,311,312,313}
 
 [testenv]
 description = run unit tests