diff --git a/CHANGELOG_CN.md b/CHANGELOG_CN.md
index 36c95858..1f2f94cd 100644
--- a/CHANGELOG_CN.md
+++ b/CHANGELOG_CN.md
@@ -1,3 +1,8 @@
+## v3.0.0-beta.3 15/01 2024
+
+1. 修复了一些 Bug。
+2. 插件推荐：paperlib-ai-summary-extension
+
 ## v3.0.0-beta.2 15/01 2024
 
 1. 摒弃了 Windows 7 的支持。
diff --git a/CHANGELOG_EN.md b/CHANGELOG_EN.md
index a2de3419..73209bf0 100644
--- a/CHANGELOG_EN.md
+++ b/CHANGELOG_EN.md
@@ -1,3 +1,8 @@
+## v3.0.0-beta.3 Jan 15 2024
+
+1. Fixed some bugs.
+2. Extension Recommendation: paperlib-ai-summary-extension
+
 ## v3.0.0-beta.2 Jan 15 2024
 
 1. Doesn't support Windows 7 anymore.
diff --git a/app/renderer/services/uislot-service.ts b/app/renderer/services/uislot-service.ts
index 774b4d12..7d4dd38c 100644
--- a/app/renderer/services/uislot-service.ts
+++ b/app/renderer/services/uislot-service.ts
@@ -32,7 +32,7 @@ export class UISlotService extends Eventable<IUISlotState> {
    * @returns
    */
   updateSlot(slotID: keyof IUISlotState, patch: { [id: string]: any }) {
-    const currentSlot = this.getState(slotID);
+    const currentSlot = JSON.parse(JSON.stringify(this.getState(slotID)));
 
     if (!currentSlot) {
       this._logService.error(
@@ -47,9 +47,11 @@ export class UISlotService extends Eventable<IUISlotState> {
     for (const [sectionID, value] of Object.entries(patch)) {
       if (value === undefined) {
         delete currentSlot[sectionID];
+      } else {
+        currentSlot[sectionID] = value;
       }
-
-      currentSlot[sectionID] = value;
     }
+
+    this.fire({ [slotID]: currentSlot });
   }
 }
diff --git a/package.json b/package.json
index 6b06bef1..d02f2ca1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "paperlib-beta",
-  "version": "3.0.0-beta.2",
+  "version": "3.0.0-beta.3",
   "main": "dist/main-entry.js",
   "description": "A simple academic paper management tool.",
   "author": "Future Scholars <hi@paperlib.app>",