diff --git a/backend/package.json b/backend/package.json
index 4ed68e6..c6bdb40 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.17.5",
+  "version": "2.17.6",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/vendor/express.js b/backend/src/vendor/express.js
index a2c7220..95cd5dc 100644
--- a/backend/src/vendor/express.js
+++ b/backend/src/vendor/express.js
@@ -17,7 +17,12 @@ export default function express({ substore: $, port, host }) {
         const express_ = eval(`require("express")`);
         const bodyParser = eval(`require("body-parser")`);
         const app = express_();
-        app.use(bodyParser.json({ verify: rawBodySaver, limit: '1mb' }));
+        app.use(
+            bodyParser.json({
+                verify: rawBodySaver,
+                limit: eval('process.env.SUB_STORE_BODY_JSON_LIMIT') || '1mb',
+            }),
+        );
         app.use(
             bodyParser.urlencoded({ verify: rawBodySaver, extended: true }),
         );