diff --git a/app/views/layouts/blacklight/base.html.erb b/app/views/layouts/blacklight/base.html.erb
index 90b9a7a985..cbdd44021c 100644
--- a/app/views/layouts/blacklight/base.html.erb
+++ b/app/views/layouts/blacklight/base.html.erb
@@ -12,6 +12,8 @@
     <%= opensearch_description_tag application_name, opensearch_catalog_url(format: 'xml') %>
     <%= favicon_link_tag %>
     <%= stylesheet_link_tag "application", media: "all", "data-turbo-track": "reload"  %>
+    <%= stylesheet_link_tag "https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" unless defined? Propshaft %>
+
     <% if defined? Importmap %>
       <%= javascript_importmap_tags %>
     <% elsif defined? Propshaft %>
diff --git a/lib/generators/blacklight/assets/importmap_generator.rb b/lib/generators/blacklight/assets/importmap_generator.rb
index 71dc340afc..62c21abd54 100644
--- a/lib/generators/blacklight/assets/importmap_generator.rb
+++ b/lib/generators/blacklight/assets/importmap_generator.rb
@@ -10,7 +10,7 @@ def import_javascript_assets
           <<~CONTENT
             pin "@github/auto-complete-element", to: "https://cdn.skypack.dev/@github/auto-complete-element"
             pin "@popperjs/core", to: "https://ga.jspm.io/npm:@popperjs/core@2.11.6/dist/umd/popper.min.js"
-            pin "bootstrap", to: "https://ga.jspm.io/npm:bootstrap@#{(defined?(Bootstrap) && Bootstrap::VERSION) || '5.3.2'}/dist/js/bootstrap.js"
+            pin "bootstrap", to: "https://ga.jspm.io/npm:bootstrap@#{(defined?(Bootstrap) && Bootstrap::VERSION) || '5.3.3'}/dist/js/bootstrap.js"
           CONTENT
         end
 
@@ -40,41 +40,19 @@ def append_blacklight_javascript
       end
 
       def add_stylesheet
-        unless used_bootstrap_css?
-          generate_with_sassc_rails
-          return
-        end
-
-        if ENV['CI']
-          run "yarn add file:#{Blacklight::Engine.root}"
+        if File.exist? 'app/assets/stylesheets/application.bootstrap.scss'
+          append_to_file 'app/assets/stylesheets/application.bootstrap.scss' do
+            <<~CONTENT
+              @import url("blacklight.css");
+            CONTENT
+          end
         else
-          run "yarn add blacklight-frontend@#{Blacklight::VERSION}"
-        end
-
-        append_to_file 'app/assets/stylesheets/application.bootstrap.scss' do
-          <<~CONTENT
-            @import "blacklight-frontend/app/assets/stylesheets/blacklight/blacklight";
-          CONTENT
-        end
-      end
-
-      private
-
-      # Did they generate the rails app with `--css bootstrap' ?
-      def used_bootstrap_css?
-        File.exist? 'app/assets/stylesheets/application.bootstrap.scss'
-      end
-
-      def generate_with_sassc_rails
-        gem "sassc-rails", "~> 2.1"
-        # This could be skipped if you want to use shakapacker or cssbunding-rails
-        gem 'bootstrap', options[:'bootstrap-version'].presence
-
-        create_file 'app/assets/stylesheets/blacklight.scss' do
-          <<~CONTENT
-            @import 'bootstrap';
-            @import 'blacklight/blacklight';
-          CONTENT
+          append_to_file 'app/assets/stylesheets/application.css' do
+            <<~CONTENT
+              @import url("blacklight.css");
+              @import stylesheet_path("blacklight.css");
+            CONTENT
+          end
         end
       end
     end
diff --git a/lib/generators/blacklight/assets/propshaft_generator.rb b/lib/generators/blacklight/assets/propshaft_generator.rb
index 9466fb2327..cf3373cdd0 100644
--- a/lib/generators/blacklight/assets/propshaft_generator.rb
+++ b/lib/generators/blacklight/assets/propshaft_generator.rb
@@ -18,7 +18,7 @@ def add_third_party_packages
       def add_package_assets
         append_to_file 'app/assets/stylesheets/application.bootstrap.scss' do
           <<~CONTENT
-            @import "blacklight-frontend/app/assets/stylesheets/blacklight/blacklight";
+            @import url("blacklight.css");
           CONTENT
         end
 
diff --git a/lib/generators/blacklight/assets_generator.rb b/lib/generators/blacklight/assets_generator.rb
index c2c2735623..a9b9c442a1 100644
--- a/lib/generators/blacklight/assets_generator.rb
+++ b/lib/generators/blacklight/assets_generator.rb
@@ -2,7 +2,7 @@
 
 module Blacklight
   class AssetsGenerator < Rails::Generators::Base
-    class_option :'bootstrap-version', type: :string, default: ENV.fetch('BOOTSTRAP_VERSION', '~> 5.3'), desc: "Set the generated app's bootstrap version"
+    class_option :'bootstrap-version', type: :string, default: ENV.fetch('BOOTSTRAP_VERSION', '5.3.3'), desc: "Set the generated app's bootstrap version"
 
     def run_asset_pipeline_specific_generator
       generated_options = "--bootstrap-version='#{options[:'bootstrap-version']}'" if options[:'bootstrap-version']