diff --git a/stdlib_list/base.py b/stdlib_list/base.py
index 5c83187..4c18607 100644
--- a/stdlib_list/base.py
+++ b/stdlib_list/base.py
@@ -19,6 +19,7 @@
     "3.10",
     "3.11",
     "3.12",
+    "3.13",
 ]
 
 short_versions = [".".join(x.split(".")[:2]) for x in long_versions]
diff --git a/tests/test_base.py b/tests/test_base.py
index cebd04b..fb62922 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -1,4 +1,4 @@
-import pkgutil
+from importlib import resources
 
 import pytest
 
@@ -22,9 +22,17 @@ def test_get_canonical_version_raises(version):
 @pytest.mark.parametrize("version", [*stdlib_list.short_versions, *stdlib_list.long_versions])
 def test_self_consistent(version):
     list_path = f"lists/{stdlib_list.get_canonical_version(version)}.txt"
-    modules = pkgutil.get_data("stdlib_list", list_path).decode().splitlines()
+    modules = resources.files("stdlib_list").joinpath(list_path).read_text().splitlines()
 
     for mod_name in modules:
         assert stdlib_list.in_stdlib(mod_name, version)
 
     assert modules == stdlib_list.stdlib_list(version)
+
+
+@pytest.mark.parametrize(
+    "version_file", [f.name for f in resources.files("stdlib_list").joinpath("lists").iterdir()]
+)
+def test_self_consistent_reverse(version_file):
+    version = version_file.removesuffix(".txt")
+    assert stdlib_list.stdlib_list(version)