diff --git a/backend/package.json b/backend/package.json
index 3367476..a45b5fb 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.19.65",
+  "version": "2.19.66",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/core/proxy-utils/processors/index.js b/backend/src/core/proxy-utils/processors/index.js
index 58f2ec5..9c2cd1c 100644
--- a/backend/src/core/proxy-utils/processors/index.js
+++ b/backend/src/core/proxy-utils/processors/index.js
@@ -623,9 +623,11 @@ const DOMAIN_RESOLVERS = {
         const cached = resourceCache.get(id);
         if (!noCache && cached) return cached;
         const resp = await $.http.get({
-            url: `http://223.6.6.6/resolve?edns_client_subnet=${edns}/24&name=${encodeURIComponent(
-                domain,
-            )}&type=${type === 'IPv6' ? 'AAAA' : 'A'}&short=1`,
+            url: `http://223.6.6.6/resolve?edns_client_subnet=${edns}/${
+                isIPv4(edns) ? 24 : 56
+            }&name=${encodeURIComponent(domain)}&type=${
+                type === 'IPv6' ? 'AAAA' : 'A'
+            }&short=1`,
             headers: {
                 accept: 'application/dns-json',
             },