diff --git a/pyproject.toml b/pyproject.toml
index ad8d447..96e2fa1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,19 @@ authors = [{name = "Billthemaker"}]
 keywords = ["rust", "postgresql", "arrow", "etl", "fast", "copy", "database"]
 classifiers = [
     "Programming Language :: Rust",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
     "Programming Language :: Python :: 3",
+    "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 :: Database",
+    "Topic :: Scientific/Engineering :: Information Analysis",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: Microsoft :: Windows",
+    "Operating System :: MacOS :: MacOS X",
 ]
 dependencies = [
     "arro3-core>=0.1.0",