diff --git a/package.json b/package.json
index adaccaf37..e082eeb6e 100644
--- a/package.json
+++ b/package.json
@@ -114,6 +114,7 @@
     "@types/request": "^2.0.3",
     "@types/sanitize-html": "^1.14.0",
     "@types/sequelize": "^4.0.55",
+    "@types/sharp": "^0.17.6",
     "@types/supertest": "^2.0.3",
     "@types/validator": "^6.2.0",
     "@types/webtorrent": "^0.98.4",
diff --git a/server.ts b/server.ts
index e46ff85c7..05fc39acb 100644
--- a/server.ts
+++ b/server.ts
@@ -164,7 +164,7 @@ function onDatabaseInitDone () {
     .then(() => {
       // ----------- Make the server listening -----------
       server.listen(port, () => {
-        VideosPreviewCache.Instance.init(CONFIG.CACHE.PREVIEWS.FILE_SIZE)
+        VideosPreviewCache.Instance.init(CONFIG.CACHE.PREVIEWS.SIZE)
         activitypubHttpJobScheduler.activate()
         transcodingJobScheduler.activate()
 
diff --git a/server/controllers/activitypub/inbox.ts b/server/controllers/activitypub/inbox.ts
index bfcb7b369..8d65639f8 100644
--- a/server/controllers/activitypub/inbox.ts
+++ b/server/controllers/activitypub/inbox.ts
@@ -16,7 +16,7 @@ inboxRouter.post('/inbox',
   asyncMiddleware(inboxController)
 )
 
-inboxRouter.post('/account/:name/inbox',
+inboxRouter.post('/accounts/:name/inbox',
   signatureValidator,
   asyncMiddleware(checkSignature),
   localAccountValidator,
diff --git a/server/controllers/activitypub/outbox.ts b/server/controllers/activitypub/outbox.ts
index 01ba253c6..620f9ee83 100644
--- a/server/controllers/activitypub/outbox.ts
+++ b/server/controllers/activitypub/outbox.ts
@@ -11,7 +11,7 @@ import { VideoModel } from '../../models/video/video'
 
 const outboxRouter = express.Router()
 
-outboxRouter.get('/account/:name/outbox',
+outboxRouter.get('/accounts/:name/outbox',
   localAccountValidator,
   asyncMiddleware(outboxController)
 )
diff --git a/server/controllers/api/users.ts b/server/controllers/api/users.ts
index 57b98b84a..6c24434f2 100644
--- a/server/controllers/api/users.ts
+++ b/server/controllers/api/users.ts
@@ -1,12 +1,13 @@
 import * as express from 'express'
 import { extname, join } from 'path'
+import * as sharp from 'sharp'
 import * as uuidv4 from 'uuid/v4'
 import { UserCreate, UserRight, UserRole, UserUpdate, UserUpdateMe, UserVideoRate as FormattedUserVideoRate } from '../../../shared'
-import { renamePromise } from '../../helpers/core-utils'
+import { renamePromise, unlinkPromise } from '../../helpers/core-utils'
 import { retryTransactionWrapper } from '../../helpers/database-utils'
 import { logger } from '../../helpers/logger'
 import { createReqFiles, getFormattedObjects } from '../../helpers/utils'
-import { AVATAR_MIMETYPE_EXT, CONFIG, sequelizeTypescript } from '../../initializers'
+import { AVATAR_MIMETYPE_EXT, AVATARS_SIZE, CONFIG, sequelizeTypescript } from '../../initializers'
 import { createUserAccountAndChannel } from '../../lib/user'
 import {
   asyncMiddleware, authenticate, ensureUserHasRight, ensureUserRegistrationAllowed, paginationValidator, setPagination, setUsersSort,
@@ -239,7 +240,11 @@ async function updateMyAvatar (req: express.Request, res: express.Response, next
   const avatarName = uuidv4() + extension
   const destination = join(avatarDir, avatarName)
 
-  await renamePromise(source, destination)
+  await sharp(source)
+    .resize(AVATARS_SIZE.width, AVATARS_SIZE.height)
+    .toFile(destination)
+
+  await unlinkPromise(source)
 
   const { avatar } = await sequelizeTypescript.transaction(async t => {
     const avatar = await AvatarModel.create({
diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index aefb91537..d9b21b389 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -316,6 +316,10 @@ const PREVIEWS_SIZE = {
   width: 560,
   height: 315
 }
+const AVATARS_SIZE = {
+  width: 120,
+  height: 120
+}
 
 const EMBED_SIZE = {
   width: 560,
@@ -355,6 +359,7 @@ CONFIG.WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WE
 
 export {
   API_VERSION,
+  AVATARS_SIZE,
   ACCEPT_HEADERS,
   BCRYPT_SALT_SIZE,
   CACHE,
diff --git a/server/middlewares/validators/users.ts b/server/middlewares/validators/users.ts
index 7de3e442c..d22a745b4 100644
--- a/server/middlewares/validators/users.ts
+++ b/server/middlewares/validators/users.ts
@@ -12,7 +12,6 @@ import { isSignupAllowed } from '../../helpers/utils'
 import { CONSTRAINTS_FIELDS } from '../../initializers'
 import { UserModel } from '../../models/account/user'
 import { areValidationErrors } from './utils'
-import Multer = require('multer')
 
 const usersAddValidator = [
   body('username').custom(isUserUsernameValid).withMessage('Should have a valid username (lowercase alphanumeric characters)'),
@@ -105,7 +104,7 @@ const usersUpdateMyAvatarValidator = [
   ),
 
   (req: express.Request, res: express.Response, next: express.NextFunction) => {
-    logger.debug('Checking usersUpdateMyAvatarValidator parameters', { parameters: req.body })
+    logger.debug('Checking usersUpdateMyAvatarValidator parameters', { files: req.files })
 
     if (areValidationErrors(req, res)) return
 
diff --git a/server/models/server/server.ts b/server/models/server/server.ts
index 122e5f74f..d35aa0ca4 100644
--- a/server/models/server/server.ts
+++ b/server/models/server/server.ts
@@ -27,7 +27,7 @@ export class ServerModel extends Model<ServerModel> {
   @AllowNull(false)
   @Default(SERVERS_SCORE.BASE)
   @IsInt
-  @Max(SERVERS_SCORE.max)
+  @Max(SERVERS_SCORE.MAX)
   @Column
   score: number
 
diff --git a/server/models/video/video-comment.ts b/server/models/video/video-comment.ts
index 829022a51..63675c20b 100644
--- a/server/models/video/video-comment.ts
+++ b/server/models/video/video-comment.ts
@@ -214,7 +214,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
 
   static listThreadCommentsForApi (videoId: number, threadId: number) {
     const query = {
-      order: [ [ 'createdAt', 'DESC' ] ],
+      order: [ [ 'createdAt', 'ASC' ] ],
       where: {
         videoId,
         [ Sequelize.Op.or ]: [
diff --git a/server/tests/api/fixtures/avatar-resized.png b/server/tests/api/fixtures/avatar-resized.png
new file mode 100644
index 000000000..e05fc07ce
Binary files /dev/null and b/server/tests/api/fixtures/avatar-resized.png differ
diff --git a/server/tests/api/users/users.ts b/server/tests/api/users/users.ts
index 3390b2d56..f7e5972d3 100644
--- a/server/tests/api/users/users.ts
+++ b/server/tests/api/users/users.ts
@@ -352,7 +352,7 @@ describe('Test users', function () {
     const res = await getMyUserInformation(server.url, accessTokenUser)
     const user = res.body
 
-    const test = await testVideoImage(server.url, 'avatar', user.account.avatar.path, '.png')
+    const test = await testVideoImage(server.url, 'avatar-resized', user.account.avatar.path, '.png')
     expect(test).to.equal(true)
   })
 
diff --git a/yarn.lock b/yarn.lock
index 67337c08b..7929d6ae0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -170,6 +170,12 @@
     "@types/express-serve-static-core" "*"
     "@types/mime" "*"
 
+"@types/sharp@^0.17.6":
+  version "0.17.6"
+  resolved "https://registry.yarnpkg.com/@types/sharp/-/sharp-0.17.6.tgz#3138602163b30b4969f75a2755a3f90caaaa9be3"
+  dependencies:
+    "@types/node" "*"
+
 "@types/simple-peer@*":
   version "6.1.4"
   resolved "https://registry.yarnpkg.com/@types/simple-peer/-/simple-peer-6.1.4.tgz#1d1384e1d8dc17b9e7d1673d704febe91ca48191"