diff --git a/pyproject.toml b/pyproject.toml
index fb7c4da7..3040c7c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,8 @@ classifiers=[
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Printing",
 ]
 dynamic = [  # these variables are dynamically set at `setup.py`