diff --git a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
index 4bd6f1ac8e..128cb3491a 100644
--- a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
@@ -46,12 +46,12 @@ export class MastodonApiServerService {
 			done();
 		});
 
-		fastify.addContentTypeParser('application/x-www-form-urlencoded', function (request, payload, done) {
+		fastify.addContentTypeParser('application/x-www-form-urlencoded', (request, payload, done) => {
 			let body = '';
-			payload.on('data', function (data) {
+			payload.on('data', (data) => {
 				body += data;
 			});
-			payload.on('end', function () {
+			payload.on('end', () => {
 				try {
 					const parsed = querystring.parse(body);
 					done(null, parsed);
diff --git a/packages/backend/src/server/oauth/OAuth2ProviderService.ts b/packages/backend/src/server/oauth/OAuth2ProviderService.ts
index 5b0850b9b1..ad2657a97c 100644
--- a/packages/backend/src/server/oauth/OAuth2ProviderService.ts
+++ b/packages/backend/src/server/oauth/OAuth2ProviderService.ts
@@ -51,12 +51,12 @@ export class OAuth2ProviderService {
 			done();
 		});
 
-		fastify.addContentTypeParser('application/x-www-form-urlencoded', function (request, payload, done) {
+		fastify.addContentTypeParser('application/x-www-form-urlencoded', (request, payload, done) => {
 			let body = '';
-			payload.on('data', function (data) {
+			payload.on('data', (data) => {
 				body += data;
 			});
-			payload.on('end', function () {
+			payload.on('end', () => {
 				try {
 					const parsed = querystring.parse(body);
 					done(null, parsed);
@@ -122,7 +122,7 @@ export class OAuth2ProviderService {
 				};
 				reply.send(ret);
 			} catch (err: any) {
-				console.error(err);
+				/* console.error(err); */
 				reply.code(401).send(err.response.data);
 			}
 		});