diff --git a/MODULE.bazel b/MODULE.bazel
index 40e306fa..092ee180 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -27,6 +27,7 @@ python.toolchain(
     is_default = True,
     python_version = "3.12",
 )
+python.toolchain(python_version = "3.13")
 
 pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip", dev_dependency = True)
 pip.parse(
diff --git a/setup.py b/setup.py
index 238d9d89..69cc49da 100644
--- a/setup.py
+++ b/setup.py
@@ -92,16 +92,10 @@ class BuildBazelExtension(build_ext.build_ext):
     def bazel_build(self, ext: BazelExtension) -> None:
         """Runs the bazel build to create the package."""
         temp_path = Path(self.build_temp)
-        if py_limited_api:
-            # We only need to know the minimum ABI version,
-            # since it is stable across minor versions by definition.
-            # The value here is calculated as the minimum of a) the minimum
-            # Python version required, and b) the stable ABI version target.
-            # NB: This needs to be kept in sync with [project.requires-python]
-            # in pyproject.toml.
-            python_version = "3.12"
-        else:
-            python_version = "{0}.{1}".format(*sys.version_info[:2])
+
+        # We round to the minor version, which makes rules_python
+        # look up the latest available patch version internally.
+        python_version = "{0}.{1}".format(*sys.version_info[:2])
 
         bazel_argv = [
             "bazel",