diff --git a/pyproject.toml b/pyproject.toml
index 05a4666..7250125 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,13 +18,22 @@ keywords = [
     "time",
     "time-stamps"
 ]
+
+# https://pypi.org/classifiers/
 classifiers = [
-    "Programming Language :: Python :: 3 :: Only",
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
     "Intended Audience :: End Users/Desktop",
-    "Operating System :: OS Independent"
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
+
 dependencies = [
     "pyreadline3>=3.5.4",
 ]