diff --git a/Gemfile b/Gemfile
index 004b3120c..28f0577c4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -145,7 +145,7 @@ group :development do
   gem 'brakeman', '~> 4.10', require: false
   gem 'bundler-audit', '~> 0.7', require: false
 
-  gem 'capistrano', '~> 3.14'
+  gem 'capistrano', '~> 3.15'
   gem 'capistrano-rails', '~> 1.6'
   gem 'capistrano-rbenv', '~> 2.2'
   gem 'capistrano-yarn', '~> 2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 8d6ce3e0e..15bd1d988 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -116,7 +116,7 @@ GEM
       bundler (>= 1.2.0, < 3)
       thor (>= 0.18, < 2)
     byebug (11.1.3)
-    capistrano (3.14.1)
+    capistrano (3.15.0)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
@@ -272,7 +272,7 @@ GEM
     httplog (1.4.3)
       rack (>= 1.0)
       rainbow (>= 2.0.0)
-    i18n (1.8.5)
+    i18n (1.8.7)
       concurrent-ruby (~> 1.0)
     i18n-tasks (0.9.33)
       activesupport (>= 4.0.2)
@@ -359,10 +359,10 @@ GEM
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.1.0)
     nio4r (2.5.4)
-    nokogiri (1.11.0)
+    nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
-    nokogumbo (2.0.2)
+    nokogumbo (2.0.4)
       nokogiri (~> 1.8, >= 1.8.4)
     nsa (0.2.7)
       activesupport (>= 4.2, < 6)
@@ -561,7 +561,7 @@ GEM
       fugit (~> 1.1, >= 1.1.6)
     safety_net_attestation (0.4.0)
       jwt (~> 2.0)
-    sanitize (5.2.1)
+    sanitize (5.2.2)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
@@ -592,7 +592,7 @@ GEM
     simple_form (5.0.3)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
-    simplecov (0.21.0)
+    simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
@@ -605,7 +605,7 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sshkit (1.21.0)
+    sshkit (1.21.1)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     stackprof (0.2.16)
@@ -698,7 +698,7 @@ DEPENDENCIES
   browser
   bullet (~> 6.1)
   bundler-audit (~> 0.7)
-  capistrano (~> 3.14)
+  capistrano (~> 3.15)
   capistrano-rails (~> 1.6)
   capistrano-rbenv (~> 2.2)
   capistrano-yarn (~> 2.0)
diff --git a/app/controllers/api/v1/markers_controller.rb b/app/controllers/api/v1/markers_controller.rb
index 28c2ec791..867e6facf 100644
--- a/app/controllers/api/v1/markers_controller.rb
+++ b/app/controllers/api/v1/markers_controller.rb
@@ -7,7 +7,7 @@ class Api::V1::MarkersController < Api::BaseController
   before_action :require_user!
 
   def index
-    @markers = current_user.markers.where(timeline: Array(params[:timeline])).each_with_object({}) { |marker, h| h[marker.timeline] = marker }
+    @markers = current_user.markers.where(timeline: Array(params[:timeline])).index_by(&:timeline)
     render json: serialize_map(@markers)
   end
 
diff --git a/app/controllers/concerns/cache_concern.rb b/app/controllers/concerns/cache_concern.rb
index 8d82eda5c..3fb4b962a 100644
--- a/app/controllers/concerns/cache_concern.rb
+++ b/app/controllers/concerns/cache_concern.rb
@@ -38,7 +38,7 @@ module CacheConcern
     klass.reload_stale_associations!(cached_keys_with_value.values) if klass.respond_to?(:reload_stale_associations!)
 
     unless uncached_ids.empty?
-      uncached = klass.where(id: uncached_ids).with_includes.each_with_object({}) { |item, h| h[item.id] = item }
+      uncached = klass.where(id: uncached_ids).with_includes.index_by(&:id)
 
       uncached.each_value do |item|
         Rails.cache.write(item, item)
diff --git a/app/lib/activitypub/activity/block.rb b/app/lib/activitypub/activity/block.rb
index 90477bf33..92a0f813f 100644
--- a/app/lib/activitypub/activity/block.rb
+++ b/app/lib/activitypub/activity/block.rb
@@ -11,8 +11,13 @@ class ActivityPub::Activity::Block < ActivityPub::Activity
       return
     end
 
+    UnfollowService.new.call(@account, target_account) if @account.following?(target_account)
     UnfollowService.new.call(target_account, @account) if target_account.following?(@account)
+    RejectFollowService.new.call(target_account, @account) if target_account.requested?(@account)
 
-    @account.block!(target_account, uri: @json['id']) unless delete_arrived_first?(@json['id'])
+    unless delete_arrived_first?(@json['id'])
+      BlockWorker.perform_async(@account.id, target_account.id)
+      @account.block!(target_account, uri: @json['id'])
+    end
   end
 end
diff --git a/app/lib/entity_cache.rb b/app/lib/entity_cache.rb
index e38a3adcd..5d51e8585 100644
--- a/app/lib/entity_cache.rb
+++ b/app/lib/entity_cache.rb
@@ -25,7 +25,7 @@ class EntityCache
     end
 
     unless uncached_ids.empty?
-      uncached = CustomEmoji.where(shortcode: shortcodes, domain: domain, disabled: false).each_with_object({}) { |item, h| h[item.shortcode] = item }
+      uncached = CustomEmoji.where(shortcode: shortcodes, domain: domain, disabled: false).index_by(&:shortcode)
       uncached.each_value { |item| Rails.cache.write(to_key(:emoji, item.shortcode, domain), item, expires_in: MAX_EXPIRATION) }
     end
 
diff --git a/app/lib/settings/scoped_settings.rb b/app/lib/settings/scoped_settings.rb
index 9889940f3..95e195458 100644
--- a/app/lib/settings/scoped_settings.rb
+++ b/app/lib/settings/scoped_settings.rb
@@ -31,7 +31,7 @@ module Settings
 
     def all_as_records
       vars = thing_scoped
-      records = vars.each_with_object({}) { |r, h| h[r.var] = r }
+      records = vars.index_by(&:var)
 
       Setting.default_settings.each do |key, default_value|
         next if records.key?(key) || default_value.is_a?(Hash)
diff --git a/app/lib/webfinger.rb b/app/lib/webfinger.rb
index c7aa43bb3..702365939 100644
--- a/app/lib/webfinger.rb
+++ b/app/lib/webfinger.rb
@@ -21,7 +21,7 @@ class Webfinger
     private
 
     def links
-      @links ||= @json['links'].map { |link| [link['rel'], link] }.to_h
+      @links ||= @json['links'].index_by { |link| link['rel'] }
     end
   end
 
diff --git a/app/models/account.rb b/app/models/account.rb
index 15bd8a917..b03cbbdf4 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -277,7 +277,7 @@ class Account < ApplicationRecord
   end
 
   def tags_as_strings=(tag_names)
-    hashtags_map = Tag.find_or_create_by_names(tag_names).each_with_object({}) { |tag, h| h[tag.name] = tag }
+    hashtags_map = Tag.find_or_create_by_names(tag_names).index_by(&:name)
 
     # Remove hashtags that are to be deleted
     tags.each do |tag|
diff --git a/app/models/notification.rb b/app/models/notification.rb
index b6db37d6d..5e9ea62a0 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -96,7 +96,7 @@ class Notification < ApplicationRecord
 
       return if account_ids.empty?
 
-      accounts = Account.where(id: account_ids).includes(:account_stat).each_with_object({}) { |a, h| h[a.id] = a }
+      accounts = Account.where(id: account_ids).includes(:account_stat).index_by(&:id)
 
       cached_items.each do |item|
         item.from_account = accounts[item.from_account_id]
diff --git a/app/models/setting.rb b/app/models/setting.rb
index a5878e96a..4bcaa060f 100644
--- a/app/models/setting.rb
+++ b/app/models/setting.rb
@@ -40,7 +40,7 @@ class Setting < RailsSettings::Base
 
     def all_as_records
       vars    = thing_scoped
-      records = vars.each_with_object({}) { |r, h| h[r.var] = r }
+      records = vars.index_by(&:var)
 
       default_settings.each do |key, default_value|
         next if records.key?(key) || default_value.is_a?(Hash)
diff --git a/app/models/status.rb b/app/models/status.rb
index 766c13a40..836d363ef 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -354,7 +354,7 @@ class Status < ApplicationRecord
 
       return if account_ids.empty?
 
-      accounts = Account.where(id: account_ids).includes(:account_stat).each_with_object({}) { |a, h| h[a.id] = a }
+      accounts = Account.where(id: account_ids).includes(:account_stat).index_by(&:id)
 
       cached_items.each do |item|
         item.account = accounts[item.account_id]
diff --git a/app/models/trending_tags.rb b/app/models/trending_tags.rb
index c69f6d3c3..9c2aa0ee8 100644
--- a/app/models/trending_tags.rb
+++ b/app/models/trending_tags.rb
@@ -91,7 +91,7 @@ class TrendingTags
 
       tags = Tag.where(id: tag_ids)
       tags = tags.trendable if filtered
-      tags = tags.each_with_object({}) { |tag, h| h[tag.id] = tag }
+      tags = tags.index_by(&:id)
 
       tag_ids.map { |tag_id| tags[tag_id] }.compact.take(limit)
     end
diff --git a/config/deploy.rb b/config/deploy.rb
index 5d6873588..c0d72f48f 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-lock '3.14.1'
+lock '3.15.0'
 
 set :repo_url, ENV.fetch('REPO', 'https://github.com/tootsuite/mastodon.git')
 set :branch, ENV.fetch('BRANCH', 'master')
diff --git a/lib/mastodon/media_cli.rb b/lib/mastodon/media_cli.rb
index 5f4a414b1..59c118500 100644
--- a/lib/mastodon/media_cli.rb
+++ b/lib/mastodon/media_cli.rb
@@ -326,7 +326,7 @@ module Mastodon
       end
 
       preload_map.each_with_object({}) do |(model_name, record_ids), model_map|
-        model_map[model_name] = model_name.constantize.where(id: record_ids).each_with_object({}) { |record, record_map| record_map[record.id] = record }
+        model_map[model_name] = model_name.constantize.where(id: record_ids).index_by(&:id)
       end
     end
   end
diff --git a/package.json b/package.json
index 98f8b6d83..2e44cf4ed 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "@clusterws/cws": "^3.0.0",
     "@gamestdio/websocket": "^0.3.2",
     "@github/webauthn-json": "^0.5.7",
-    "@rails/ujs": "^6.1.0",
+    "@rails/ujs": "^6.1.1",
     "array-includes": "^3.1.2",
     "atrament": "0.2.4",
     "arrow-key-navigation": "^1.2.0",
@@ -156,7 +156,7 @@
     "requestidlecallback": "^0.3.0",
     "reselect": "^4.0.0",
     "rimraf": "^3.0.2",
-    "sass": "^1.32.0",
+    "sass": "^1.32.2",
     "sass-loader": "^10.1.0",
     "stacktrace-js": "^2.0.2",
     "stringz": "^2.1.0",
@@ -166,7 +166,7 @@
     "throng": "^4.0.0",
     "tiny-queue": "^0.2.1",
     "uuid": "^8.3.1",
-    "webpack": "^4.44.2",
+    "webpack": "^4.45.0",
     "webpack-assets-manifest": "^4.0.0",
     "webpack-bundle-analyzer": "^4.3.0",
     "webpack-cli": "^3.3.12",
@@ -175,7 +175,7 @@
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.11.8",
-    "@testing-library/react": "^11.2.2",
+    "@testing-library/react": "^11.2.3",
     "babel-eslint": "^10.1.0",
     "babel-jest": "^26.6.3",
     "eslint": "^7.17.0",
diff --git a/spec/models/notification_spec.rb b/spec/models/notification_spec.rb
index d2e676ec2..0a045904b 100644
--- a/spec/models/notification_spec.rb
+++ b/spec/models/notification_spec.rb
@@ -71,7 +71,7 @@ RSpec.describe Notification, type: :model do
       before do
         allow(accounts_with_ids).to receive(:[]).with(stale_account1.id).and_return(account1)
         allow(accounts_with_ids).to receive(:[]).with(stale_account2.id).and_return(account2)
-        allow(Account).to receive_message_chain(:where, :includes, :each_with_object).and_return(accounts_with_ids)
+        allow(Account).to receive_message_chain(:where, :includes, :index_by).and_return(accounts_with_ids)
       end
 
       let(:cached_items) do
diff --git a/yarn.lock b/yarn.lock
index df415f517..e5e7ab2f5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1352,10 +1352,10 @@
   resolved "https://registry.yarnpkg.com/@polka/url/-/url-1.0.0-next.11.tgz#aeb16f50649a91af79dbe36574b66d0f9e4d9f71"
   integrity sha512-3NsZsJIA/22P3QUyrEDNA2D133H4j224twJrdipXN38dpnIOzAbUDtOwkcJ5pXmn75w7LSQDjA4tO9dm1XlqlA==
 
-"@rails/ujs@^6.1.0":
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/@rails/ujs/-/ujs-6.1.0.tgz#9a48df6511cb2b472c9f596c1f37dc0af022e751"
-  integrity sha512-kQNKyM4ePAc4u9eR1c4OqrbAHH+3SJXt++8izIjeaZeg+P7yBtgoF/dogMD/JPPowNC74ACFpM/4op0Ggp/fPw==
+"@rails/ujs@^6.1.1":
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/@rails/ujs/-/ujs-6.1.1.tgz#25c4e60018274b37e5ba0850134f6445429de2f5"
+  integrity sha512-uF6zEbXpGkNa7Vvxrd9Yqas8xsbc3lsC733V6I7fXgPuj8xXiuZakdE4uIyQSFRVmZKe12qmC6CNJNtIEvt4bA==
 
 "@sinonjs/commons@^1.7.0":
   version "1.8.1"
@@ -1399,10 +1399,10 @@
     lodash "^4.17.15"
     redent "^3.0.0"
 
-"@testing-library/react@^11.2.2":
-  version "11.2.2"
-  resolved "https://registry.yarnpkg.com/@testing-library/react/-/react-11.2.2.tgz#099c6c195140ff069211143cb31c0f8337bdb7b7"
-  integrity sha512-jaxm0hwUjv+hzC+UFEywic7buDC9JQ1q3cDsrWVSDAPmLotfA6E6kUHlYm/zOeGCac6g48DR36tFHxl7Zb+N5A==
+"@testing-library/react@^11.2.3":
+  version "11.2.3"
+  resolved "https://registry.yarnpkg.com/@testing-library/react/-/react-11.2.3.tgz#9971ede1c8465a231d7982eeca3c39fc362d5443"
+  integrity sha512-BirBUGPkTW28ULuCwIbYo0y2+0aavHczBT6N9r3LrsswEW3pg25l1wgoE7I8QBIy1upXWkwKpYdWY7NYYP0Bxw==
   dependencies:
     "@babel/runtime" "^7.12.5"
     "@testing-library/dom" "^7.28.1"
@@ -9528,10 +9528,10 @@ sass-loader@^10.1.0:
     schema-utils "^3.0.0"
     semver "^7.3.2"
 
-sass@^1.32.0:
-  version "1.32.0"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.32.0.tgz#10101a026c13080b14e2b374d4e15ee24400a4d3"
-  integrity sha512-fhyqEbMIycQA4blrz/C0pYhv2o4x2y6FYYAH0CshBw3DXh5D5wyERgxw0ptdau1orc/GhNrhF7DFN2etyOCEng==
+sass@^1.32.2:
+  version "1.32.2"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.32.2.tgz#66dc0250bc86c15d19ddee7135e93d0cf3d3257b"
+  integrity sha512-u1pUuzqwz3SAgvHSWp1k0mRhX82b2DdlVnP6UIetQPZtYbuJUDaPQhZE12jyjB7vYeOScfz9WPsZJB6Rpk7heA==
   dependencies:
     chokidar ">=2.0.0 <4.0.0"
 
@@ -11185,10 +11185,10 @@ webpack-sources@^1.0, webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-so
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^4.44.2:
-  version "4.44.2"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.44.2.tgz#6bfe2b0af055c8b2d1e90ed2cd9363f841266b72"
-  integrity sha512-6KJVGlCxYdISyurpQ0IPTklv+DULv05rs2hseIXer6D7KrUicRDLFb4IUM1S6LUAKypPM/nSiVSuv8jHu1m3/Q==
+webpack@^4.45.0:
+  version "4.45.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.45.0.tgz#bcdc1ddb43959adb47f8974e60d944027267c1be"
+  integrity sha512-JhDaVi4CbRcwLLAoqC7eugMSMJnZbIfE2AyjaZ19pnOIh/R2O/lXOiXA2tQFN0iXEcxgpPJsPJHW2wOWqiTLcw==
   dependencies:
     "@webassemblyjs/ast" "1.9.0"
     "@webassemblyjs/helper-module-context" "1.9.0"