diff --git a/qsl.toml b/qsl.toml
index 086e3a4..98202c4 100644
--- a/qsl.toml
+++ b/qsl.toml
@@ -2,7 +2,7 @@ tier = "strategy-lib"
 upgrade_ring = "ring_b"
 
 [compat]
-bundle = "2026.09.0"
+bundle = "2026.09.1"
 requires = [
   "pandas>=2.0",
   "quant-platform-kit @ git+https://github.com/QuantStrategyLab/QuantPlatformKit.git@b13e28759a880dcb446dbfbc580dc032333b065e",
diff --git a/tests/test_qsl_compat_metadata.py b/tests/test_qsl_compat_metadata.py
index 898d520..c5062b1 100644
--- a/tests/test_qsl_compat_metadata.py
+++ b/tests/test_qsl_compat_metadata.py
@@ -16,7 +16,7 @@ def test_qsl_compat_metadata_exists_and_bundle() -> None:
     with qsl_path.open("rb") as f:
         data = tomllib.load(f)
 
-    assert data.get("compat", {}).get("bundle") == "2026.09.0", "compat.bundle mismatch"
+    assert data.get("compat", {}).get("bundle") == "2026.09.1", "compat.bundle mismatch"
 
 
 def test_qpk_pin_lock_and_ci_are_dependency_enabled() -> None: