diff --git a/packages/backend/src/server/api/endpoints/emojis.ts b/packages/backend/src/server/api/endpoints/emojis.ts
index 9dfb12b765..77854afb33 100644
--- a/packages/backend/src/server/api/endpoints/emojis.ts
+++ b/packages/backend/src/server/api/endpoints/emojis.ts
@@ -11,7 +11,7 @@ export const meta = {
 
 	requireCredential: false,
 	allowGet: true,
-	cacheSec: 60,
+	cacheSec: 3600,
 
 	res: {
 		type: 'object',
@@ -77,7 +77,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				},
 				cache: {
 					id: 'meta_emojis',
-					milliseconds: 60000,	// 1 minute
+					milliseconds: 3600000,	// 1 hour
 				},
 			});
 
diff --git a/packages/frontend/src/custom-emojis.ts b/packages/frontend/src/custom-emojis.ts
index 33f006b2a3..89b8887b21 100644
--- a/packages/frontend/src/custom-emojis.ts
+++ b/packages/frontend/src/custom-emojis.ts
@@ -33,7 +33,7 @@ stream.on('emojiDeleted', emojiData => {
 export async function fetchCustomEmojis() {
 	const now = Date.now();
 	const lastFetchedAt = miLocalStorage.getItem('lastEmojisFetchedAt');
-	if (lastFetchedAt && (now - parseInt(lastFetchedAt)) < 1000 * 60) return;
+	if (lastFetchedAt && (now - parseInt(lastFetchedAt)) < 1000 * 60 * 60) return;
 
 	const res = await apiGet('emojis', {});