diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index ba0098c7..bb52646a 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -14,6 +14,7 @@ class ApplicationController < ActionController::Base
 
   before_action :store_current_location, except: :raise_not_found, unless: :devise_controller?
   before_action :set_locale
+  before_action :set_user_activity
 
   def raise_not_found
     raise ActionController::RoutingError, "No route matches #{params[:unmatched_route]}"
@@ -35,6 +36,10 @@ class ApplicationController < ActionController::Base
     redirect_to root_path unless current_user&.admin?
   end
 
+  def set_user_activity
+    current_user.touch(:current_sign_in_at) if !current_user.nil? && current_user.current_sign_in_at < 24.hours.ago
+  end
+
   protected
 
   def not_found
diff --git a/app/helpers/stream_entries_helper.rb b/app/helpers/stream_entries_helper.rb
index 2ba50edc..1eb2ed05 100644
--- a/app/helpers/stream_entries_helper.rb
+++ b/app/helpers/stream_entries_helper.rb
@@ -6,7 +6,7 @@ module StreamEntriesHelper
   end
 
   def avatar_for_status_url(status)
-    status.reblog? ? status.reblog.account.avatar.url(:medium) : status.account.avatar.url(:medium)
+    status.reblog? ? status.reblog.account.avatar.url(:large) : status.account.avatar.url(:large)
   end
 
   def entry_classes(status, is_predecessor, is_successor, include_threads)