diff --git a/Gemfile b/Gemfile
index fe953d9..3e75bbb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'headline_sources', git: 'https://github.com/wilg/headline-sources.git'
 
 gem 'pg'
 gem 'haml'
-gem 'sass-rails', '~> 4.0.3'
+gem 'sass-rails', '~> 6.0.0'
 gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.2.2'
 gem 'jquery-rails'
@@ -19,7 +19,7 @@ gem 'rack-cors'
 gem 'bootstrap-sass', '~> 3.4.1'
 gem 'font-awesome-rails'
 gem 'will_paginate-bootstrap'
-gem 'handlebars_assets'
+gem 'handlebars_assets', '0.23.2'
 gem 'font_assets'
 gem 'rails_autolink'
 gem 'rails-timeago', '~> 2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index b748110..e08c1c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -111,12 +111,10 @@ GEM
     haml (5.0.0)
       temple (>= 0.8.0)
       tilt
-    handlebars_assets (0.20.2)
+    handlebars_assets (0.23.2)
       execjs (~> 2.0)
-      multi_json (~> 1.0)
-      sprockets (>= 2.0.0, < 4.0)
-      tilt (~> 1.2)
-    hike (1.2.3)
+      sprockets (>= 2.0.0)
+      tilt (>= 1.2)
     htmlentities (4.3.4)
     http (0.6.4)
       http_parser.rb (~> 0.6.0)
@@ -144,7 +142,6 @@ GEM
     mini_portile2 (2.4.0)
     minitest (5.13.0)
     mousetrap-rails (1.4.6)
-    multi_json (1.14.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     naught (1.0.0)
@@ -211,29 +208,29 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.4.4)
       nokogumbo (~> 1.4)
-    sass (3.2.19)
-    sass-rails (4.0.5)
-      railties (>= 4.0.0, < 5.0)
-      sass (~> 3.2.2)
-      sprockets (~> 2.8, < 3.0)
-      sprockets-rails (~> 2.0)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.2.1)
       ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     sax-machine (1.3.2)
     simple_oauth (0.3.1)
     snoo (0.1.2)
       httparty
       nokogiri
     spring (2.1.0)
-    sprockets (2.12.5)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.3.3)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (>= 2.8, < 4.0)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
     temple (0.8.2)
     thor (0.19.4)
     thread_safe (0.3.6)
@@ -280,7 +277,7 @@ DEPENDENCIES
   font_assets
   foreman
   haml
-  handlebars_assets
+  handlebars_assets (= 0.23.2)
   headline_sources!
   jbuilder
   jquery-hoverIntent-rails
@@ -300,7 +297,7 @@ DEPENDENCIES
   rakismet
   rollbar
   ruby-prof
-  sass-rails (~> 4.0.3)
+  sass-rails (~> 6.0.0)
   spring
   tweet-button
   twitter