diff --git a/package.json b/package.json
index 8f44623e..9ab3e780 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "4.5.9",
+  "version": "4.5.13",
   "license": "MIT",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
diff --git a/src/config/config.ts b/src/config/config.ts
index cfce477a..0a6fe03f 100644
--- a/src/config/config.ts
+++ b/src/config/config.ts
@@ -1,6 +1,6 @@
 import { GetEmojiUrl } from '../components/emoji/BaseEmojiProps';
 import {
-  addCustomEmojis,
+  setCustomEmojis,
   emojiUrlByUnified
 } from '../dataUtils/emojiSelectors';
 import {
@@ -45,7 +45,7 @@ export function mergeConfig(
     suggestionMode: config.suggestedEmojisMode
   });
 
-  addCustomEmojis(config.customEmojis ?? []);
+  setCustomEmojis(config.customEmojis ?? []);
 
   const skinTonePickerLocation = config.searchDisabled
     ? SkinTonePickerLocation.PREVIEW
diff --git a/src/dataUtils/emojiSelectors.ts b/src/dataUtils/emojiSelectors.ts
index 6ffbc3e5..3b5c64e2 100644
--- a/src/dataUtils/emojiSelectors.ts
+++ b/src/dataUtils/emojiSelectors.ts
@@ -92,17 +92,20 @@ export function emojiByUnified(unified?: string): DataEmoji | undefined {
 
 export const allEmojis: DataEmojis = Object.values(emojis).flat();
 
-export function addCustomEmojis(customEmojis: CustomEmoji[]): void {
+export function setCustomEmojis(customEmojis: CustomEmoji[]): void {
+  emojis[Categories.CUSTOM].length = 0;
+
   customEmojis.forEach(emoji => {
     const emojiData = customToRegularEmoji(emoji);
 
+    emojis[Categories.CUSTOM].push(emojiData as never);
+
     if (allEmojisByUnified[emojiData[EmojiProperties.unified]]) {
       return;
     }
 
     allEmojis.push(emojiData);
     allEmojisByUnified[emojiData[EmojiProperties.unified]] = emojiData;
-    emojis[Categories.CUSTOM].push(emojiData as never);
     indexEmoji(emojiData);
   });
 }