diff --git a/Gemfile b/Gemfile
index 372556d7..221e9fb4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'rails', '~> 5.2.4'
-gem 'sassc-rails', '~> 2.0.0'
+gem 'sassc-rails', '~> 2.1.2'
 gem 'coffee-rails', '~> 5.0.0'
 
 #gem 'json'
diff --git a/Gemfile.lock b/Gemfile.lock
index a5268019..0126714c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.1.7)
     crass (1.0.6)
     database_cleaner (1.8.5)
     diff-lcs (1.3)
@@ -100,13 +100,13 @@ GEM
     factory_bot_rails (6.1.0)
       factory_bot (~> 6.1.0)
       railties (>= 5.0.0)
-    ffi (1.9.25)
+    ffi (1.13.1)
     font-awesome-sass (5.13.0)
       sassc (>= 1.11)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     htmlentities (4.3.4)
-    i18n (1.8.4)
+    i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.4)
     jquery-rails (4.4.0)
@@ -221,10 +221,9 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
-    sassc (2.0.0)
-      ffi (~> 1.9.6)
-      rake
-    sassc-rails (2.0.0)
+    sassc (2.4.0)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
       railties (>= 4.0.0)
       sassc (>= 2.0)
       sprockets (> 3.0)
@@ -252,7 +251,7 @@ GEM
       tilt (~> 2.0)
       yard (~> 0.9, >= 0.9.24)
     spring (2.1.0)
-    sprockets (3.7.2)
+    sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
@@ -320,7 +319,7 @@ DEPENDENCIES
   rspec-expectations
   rubocop (~> 0.89)
   sanitize (~> 5.2)
-  sassc-rails (~> 2.0.0)
+  sassc-rails (~> 2.1.2)
   selenium-webdriver (~> 3.142)
   simplecov
   solargraph
diff --git a/app/assets/config/manifest.js b/app/assets/config/manifest.js
new file mode 100644
index 00000000..b16e53d6
--- /dev/null
+++ b/app/assets/config/manifest.js
@@ -0,0 +1,3 @@
+//= link_tree ../images
+//= link_directory ../javascripts .js
+//= link_directory ../stylesheets .css
diff --git a/app/assets/stylesheets/black.scss b/app/assets/stylesheets/black.scss
index edff8b5c..86647a0b 100644
--- a/app/assets/stylesheets/black.scss
+++ b/app/assets/stylesheets/black.scss
@@ -9,4 +9,4 @@ $link-bgcolor: $link-color;
 $box-tablink-color: unset;
 
 // Import all components
-@import 'manifest';
+@import 'include/manifest';
diff --git a/app/assets/stylesheets/icons.scss b/app/assets/stylesheets/include/icons.scss
similarity index 100%
rename from app/assets/stylesheets/icons.scss
rename to app/assets/stylesheets/include/icons.scss
diff --git a/app/assets/stylesheets/legacy.scss b/app/assets/stylesheets/include/legacy.scss
similarity index 100%
rename from app/assets/stylesheets/legacy.scss
rename to app/assets/stylesheets/include/legacy.scss
diff --git a/app/assets/stylesheets/login.scss b/app/assets/stylesheets/include/login.scss
similarity index 100%
rename from app/assets/stylesheets/login.scss
rename to app/assets/stylesheets/include/login.scss
diff --git a/app/assets/stylesheets/manifest.scss b/app/assets/stylesheets/include/manifest.scss
similarity index 100%
rename from app/assets/stylesheets/manifest.scss
rename to app/assets/stylesheets/include/manifest.scss
diff --git a/app/assets/stylesheets/tracks-logo.scss b/app/assets/stylesheets/include/tracks-logo.scss
similarity index 100%
rename from app/assets/stylesheets/tracks-logo.scss
rename to app/assets/stylesheets/include/tracks-logo.scss
diff --git a/app/assets/stylesheets/tracks.scss b/app/assets/stylesheets/include/tracks.scss
similarity index 100%
rename from app/assets/stylesheets/tracks.scss
rename to app/assets/stylesheets/include/tracks.scss
diff --git a/app/assets/stylesheets/light_blue.scss b/app/assets/stylesheets/light_blue.scss
index ae2972c1..9d6ea71e 100644
--- a/app/assets/stylesheets/light_blue.scss
+++ b/app/assets/stylesheets/light_blue.scss
@@ -9,4 +9,4 @@ $link-bgcolor: unset;
 $box-tablink-color: lighten(#000, 85%);
 
 // Import all components
-@import 'manifest';
+@import 'include/manifest';
diff --git a/config/initializers/assets.rb b/config/initializers/assets.rb
index 117d2895..719bc58e 100644
--- a/config/initializers/assets.rb
+++ b/config/initializers/assets.rb
@@ -7,8 +7,3 @@ Rails.application.config.assets.version = '1.0'
 # Rails.application.config.assets.paths << Emoji.images_path
 # Add Yarn node_modules folder to the asset load path.
 Rails.application.config.assets.paths << Rails.root.join('node_modules')
-
-# Precompile additional assets.
-# application.js, application.css, and all non-JS/CSS in the app/assets
-# folder are already added.
-Rails.application.config.assets.precompile += %w( light_blue.css black.css print.css mobile.css jquery-ui/datepicker-*.js )