diff --git a/app/javascript/mastodon/features/compose/index.js b/app/javascript/mastodon/features/compose/index.js
index cf1714b71b6..6f1b9b71dc5 100644
--- a/app/javascript/mastodon/features/compose/index.js
+++ b/app/javascript/mastodon/features/compose/index.js
@@ -90,7 +90,7 @@ class Compose extends React.PureComponent {
             <Link to='/timelines/public' className='drawer__tab' title={intl.formatMessage(messages.public)} aria-label={intl.formatMessage(messages.public)}><i role='img' className='fa fa-fw fa-globe' /></Link>
           )}
           <a href='/settings/preferences' className='drawer__tab' title={intl.formatMessage(messages.preferences)} aria-label={intl.formatMessage(messages.preferences)}><i role='img' className='fa fa-fw fa-cog' /></a>
-          <a href='/auth/sign_out' className='drawer__tab' data-method='delete' title={intl.formatMessage(messages.logout)} aria-label={intl.formatMessage(messages.logout)}><i role='img' className='fa fa-fw fa-sign-out' /></a>
+          <a href='/auth/sign_out' className='drawer__tab' data-method='delete' title={intl.formatMessage(messages.logout)} aria-label={intl.formatMessage(messages.logout)}><i role='img' className='fa fa-fw fa-sign-out-alt' /></a>
         </nav>
       );
     }
diff --git a/app/views/layouts/modal.html.haml b/app/views/layouts/modal.html.haml
index 2ef49e41320..fc8b00e0d54 100644
--- a/app/views/layouts/modal.html.haml
+++ b/app/views/layouts/modal.html.haml
@@ -9,7 +9,7 @@
         = t 'users.signed_in_as'
         %span.username @#{current_account.local_username_and_domain}
       = link_to destroy_user_session_path(continue: true), method: :delete, class: 'logout-link icon-button' do
-        = fa_icon 'sign-out'
+        = fa_icon 'sign-out-alt'
 
   .container-alt= yield
   .modal-layout__mastodon
diff --git a/config/navigation.rb b/config/navigation.rb
index 99d227f1112..d50bf423c61 100644
--- a/config/navigation.rb
+++ b/config/navigation.rb
@@ -6,12 +6,12 @@ SimpleNavigation::Configuration.run do |navigation|
 
     primary.item :settings, safe_join([fa_icon('cog fw'), t('settings.settings')]), settings_profile_url do |settings|
       settings.item :profile, safe_join([fa_icon('user fw'), t('settings.edit_profile')]), settings_profile_url, highlights_on: %r{/settings/profile|/settings/migration}
-      settings.item :preferences, safe_join([fa_icon('sliders fw'), t('settings.preferences')]), settings_preferences_url
+      settings.item :preferences, safe_join([fa_icon('sliders-h fw'), t('settings.preferences')]), settings_preferences_url
       settings.item :notifications, safe_join([fa_icon('bell fw'), t('settings.notifications')]), settings_notifications_url
       settings.item :password, safe_join([fa_icon('lock fw'), t('auth.security')]), edit_user_registration_url, highlights_on: %r{/auth/edit|/settings/delete}
       settings.item :two_factor_authentication, safe_join([fa_icon('mobile fw'), t('settings.two_factor_authentication')]), settings_two_factor_authentication_url, highlights_on: %r{/settings/two_factor_authentication}
-      settings.item :import, safe_join([fa_icon('cloud-upload fw'), t('settings.import')]), settings_import_url
-      settings.item :export, safe_join([fa_icon('cloud-download fw'), t('settings.export')]), settings_export_url
+      settings.item :import, safe_join([fa_icon('cloud-upload-alt fw'), t('settings.import')]), settings_import_url
+      settings.item :export, safe_join([fa_icon('cloud-download-alt fw'), t('settings.export')]), settings_export_url
       settings.item :authorized_apps, safe_join([fa_icon('list fw'), t('settings.authorized_apps')]), oauth_authorized_applications_url
       settings.item :follower_domains, safe_join([fa_icon('users fw'), t('settings.followers')]), settings_follower_domains_url
     end
@@ -34,15 +34,15 @@ SimpleNavigation::Configuration.run do |navigation|
     end
 
     primary.item :admin, safe_join([fa_icon('cogs fw'), t('admin.title')]), admin_dashboard_url, if: proc { current_user.staff? } do |admin|
-      admin.item :dashboard, safe_join([fa_icon('tachometer fw'), t('admin.dashboard.title')]), admin_dashboard_url
+      admin.item :dashboard, safe_join([fa_icon('tachometer-alt fw'), t('admin.dashboard.title')]), admin_dashboard_url
       admin.item :settings, safe_join([fa_icon('cogs fw'), t('admin.settings.title')]), edit_admin_settings_url, if: -> { current_user.admin? }
-      admin.item :custom_emojis, safe_join([fa_icon('smile-o fw'), t('admin.custom_emojis.title')]), admin_custom_emojis_url, highlights_on: %r{/admin/custom_emojis}
-      admin.item :relays, safe_join([fa_icon('exchange fw'), t('admin.relays.title')]), admin_relays_url, if: -> { current_user.admin? }, highlights_on: %r{/admin/relays}
-      admin.item :subscriptions, safe_join([fa_icon('paper-plane-o fw'), t('admin.subscriptions.title')]), admin_subscriptions_url, if: -> { current_user.admin? }
-      admin.item :sidekiq, safe_join([fa_icon('diamond fw'), 'Sidekiq']), sidekiq_url, link_html: { target: 'sidekiq' }, if: -> { current_user.admin? }
+      admin.item :custom_emojis, safe_join([fa_icon('smile fw'), t('admin.custom_emojis.title')]), admin_custom_emojis_url, highlights_on: %r{/admin/custom_emojis}
+      admin.item :relays, safe_join([fa_icon('exchange-alt fw'), t('admin.relays.title')]), admin_relays_url, if: -> { current_user.admin? }, highlights_on: %r{/admin/relays}
+      admin.item :subscriptions, safe_join([fa_icon('paper-plane fw'), t('admin.subscriptions.title')]), admin_subscriptions_url, if: -> { current_user.admin? }
+      admin.item :sidekiq, safe_join([fa_icon('gem fw'), 'Sidekiq']), sidekiq_url, link_html: { target: 'sidekiq' }, if: -> { current_user.admin? }
       admin.item :pghero, safe_join([fa_icon('database fw'), 'PgHero']), pghero_url, link_html: { target: 'pghero' }, if: -> { current_user.admin? }
     end
 
-    primary.item :logout, safe_join([fa_icon('sign-out fw'), t('auth.logout')]), destroy_user_session_url, link_html: { 'data-method' => 'delete' }
+    primary.item :logout, safe_join([fa_icon('sign-out-alt fw'), t('auth.logout')]), destroy_user_session_url, link_html: { 'data-method' => 'delete' }
   end
 end