diff --git a/changelog.json b/changelog.json
index 8408b736..70b8eb92 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,4 +1,10 @@
 {
+  "30901": {
+    "visible": true,
+    "date": "2021/02/20",
+    "zh-TW": "* 改善校車及缺曠系統登入",
+    "en-US": "* Improve bus and leave system login."
+  },
   "30900": {
     "visible": true,
     "date": "2021/02/20",
diff --git a/pubspec.yaml b/pubspec.yaml
index ac8bae88..e6894b9b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: nkust_ap
 description: A new Flutter application.
 
-version: 3.9.0+30900
+version: 3.9.1+30901
 
 environment:
   sdk: ">=2.6.0 <3.0.0"