diff --git a/makefile b/makefile
index 1020e96..c51b379 100644
--- a/makefile
+++ b/makefile
@@ -4,7 +4,7 @@ DEFAULT: run
 clean:
 	rm -rf dist .tox
 build: clean
-	python3 -m build
+	python -m build
 install: build
 	pipx install dist/*.tar.gz --force
 run: install
diff --git a/pyproject.toml b/pyproject.toml
index 609508b..883e595 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,6 +26,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3 :: Only",
 ]
 dependencies = ["pygame"]
diff --git a/tox.ini b/tox.ini
index 0c10011..34f1863 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
-envlist = py{37, 38, 39, 310, 311}
-minversion = 3.3.0
+envlist = py{37, 38, 39, 310, 311, 312}
+minversion = 3.7.0
 isolated_build = true
 
 [testenv]