diff --git a/requirements-docker.txt b/requirements-docker.txt
index 41365cf..5c5a8c6 100644
--- a/requirements-docker.txt
+++ b/requirements-docker.txt
@@ -77,7 +77,7 @@ aioredis>=2.0.0
 # ============================================
 # Alpha 量化依赖（可选）
 # ============================================
-polars>=1.26.0
+polars==1.42.1   # 钉版:NAS CPU(Synology Celeron)无 AVX2,polars>=1.43 的 wheel SIGILL 崩溃(exit132);1.42.1 实证 NAS 可跑(见 pre-init-rebuild)。勿放回 >=
 scipy>=1.15.2
 alphalens-reloaded>=0.4.5
 scikit-learn>=1.6.1