diff --git a/pyproject.toml b/pyproject.toml
index d240557..d64f421 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,15 @@ keywords = [
     "markdown",
 ]
 
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Operating System :: OS Independent",
+]
+
 dependencies = [
     "matplotlib>=3.10.3",
     "pandas>=2.2.3",