diff --git a/backend/package.json b/backend/package.json
index 28a2390..d2656be 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.264",
+  "version": "2.14.265",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/utils/flow.js b/backend/src/utils/flow.js
index 9e2b7cf..a35fb1e 100644
--- a/backend/src/utils/flow.js
+++ b/backend/src/utils/flow.js
@@ -138,10 +138,10 @@ export function parseFlowHeaders(flowHeaders) {
     return { expires, total, usage: { upload, download } };
 }
 export function flowTransfer(flow, unit = 'B') {
-    const unitList = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB'];
+    const unitList = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
     let unitIndex = unitList.indexOf(unit);
 
-    return flow < 1024
+    return flow < 1024 || unitIndex === unitList.length - 1
         ? { value: flow.toFixed(1), unit: unit }
         : flowTransfer(flow / 1024, unitList[++unitIndex]);
 }