diff --git a/README.md b/README.md
index 3404410..60f711f 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,6 @@ Clash / Stash rule-providers 镜像。
 示例：https://g.yiku.work/troy/clash-rules/raw/branch/main/rules/reject.yaml
 
 来源：Loyalsoldier/clash-rules、blackmatrix7/ios_rule_script。仅个人使用。
+
+镜像文件经 sanitize.py 处理，已剔除旧版 Clash Premium 不支持的规则类型（IP-ASN 等）。
+刷新流程：重新下载到 rules/ 后执行 python3 sanitize.py，再提交。
diff --git a/rules/telegram.yaml b/rules/telegram.yaml
index 27410e2..fdf91a0 100644
--- a/rules/telegram.yaml
+++ b/rules/telegram.yaml
@@ -52,8 +52,3 @@ payload:
   - PROCESS-NAME,telegram-desktop
   - PROCESS-NAME,tw.nekomimi.nekogram
   - PROCESS-NAME,xyz.nextalone.nagram
-  - IP-ASN,211157
-  - IP-ASN,44907
-  - IP-ASN,59930
-  - IP-ASN,62014
-  - IP-ASN,62041
diff --git a/sanitize.py b/sanitize.py
new file mode 100755
index 0000000..4cf56c6
--- /dev/null
+++ b/sanitize.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+"""去掉 Clash Premium(Clash for Windows) 不认识的规则类型，保持镜像可被新旧内核共用。"""
+import pathlib, re, sys
+
+UNSUPPORTED = ("IP-ASN", "GEOSITE", "IP-SUFFIX", "SRC-IP-SUFFIX", "RULE-SET", "SUB-RULE", "AND", "OR", "NOT")
+
+changed = 0
+for f in sorted(pathlib.Path("rules").iterdir()):
+    lines = f.read_text(encoding="utf-8").splitlines(True)
+    kept = [l for l in lines
+            if not any(re.match(rf"\s*-\s*{t},", l) for t in UNSUPPORTED)]
+    if len(kept) != len(lines):
+        f.write_text("".join(kept), encoding="utf-8")
+        print(f"{f.name}: removed {len(lines) - len(kept)} line(s)")
+        changed += 1
+print(f"files changed: {changed}")