diff --git a/src/telegram/audit.ts b/src/telegram/audit.ts
index 48e4a923f8b..b86953fa1b1 100644
--- a/src/telegram/audit.ts
+++ b/src/telegram/audit.ts
@@ -1,7 +1,5 @@
 import type { TelegramGroupConfig } from "../config/types.js";
 import { isRecord } from "../utils.js";
-import { fetchWithTimeout } from "../utils/fetch-timeout.js";
-import { makeProxyFetch } from "./proxy.js";
 
 const TELEGRAM_API_BASE = "https://api.telegram.org";
 
@@ -87,7 +85,12 @@ export async function auditTelegramGroupMembership(params: {
     };
   }
 
-  const fetcher = params.proxyUrl ? makeProxyFetch(params.proxyUrl) : fetch;
+  // Lazy import to avoid pulling `undici` (ProxyAgent) into cold-path callers that only need
+  // `collectTelegramUnmentionedGroupIds` (e.g. config audits).
+  const fetcher = params.proxyUrl
+    ? (await import("./proxy.js")).makeProxyFetch(params.proxyUrl)
+    : fetch;
+  const { fetchWithTimeout } = await import("../utils/fetch-timeout.js");
   const base = `${TELEGRAM_API_BASE}/bot${token}`;
   const groups: TelegramGroupMembershipAuditEntry[] = [];