diff --git a/.travis.yml b/.travis.yml
index 359022d..7b5eaa5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,17 +5,16 @@ bundler_args: "--binstubs --standalone --without documentation --path ../bundle"
 script: "bundle exec rake test"
 
 gemfile:
-  - gemfiles/sprockets_2_12.gemfile
+  - gemfiles/sprockets-rails_3_0.gemfile
+  - gemfiles/sprockets-rails_2_3.gemfile
   - gemfiles/sprockets_3_0.gemfile
   - gemfiles/sprockets_4_0.gemfile
-  - gemfiles/sprockets-rails_3_0.gemfile
   - gemfiles/rails_4_2.gemfile
-  - gemfiles/rails_4_1.gemfile
-  - gemfiles/rails_4_0.gemfile
+  - gemfiles/rails_5_2.gemfile
 
 rvm:
-  - 2.2.2
-  - 2.3.0
+  - 2.4.4
+  - 2.5.1
 
 notifications:
   email: false
diff --git a/README.md b/README.md
index 003f8fc..528633f 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,9 @@ is maintained by [Ryan Boland](https://ryanboland.com) and [awesome contributors
 
 ## Changelog
 
+- **2.0.0**
+  - [Drop support for Sprockets 2](https://github.com/sass/sassc-rails/pull/109)
+  - [Remove dependency on Ruby Sass](https://github.com/sass/sassc-rails/pull/109)
 - **1.3.0**
   - [Silence Sprockets deprecation warnings](https://github.com/sass/sassc-rails/pull/76)
   - [Sprockets 4 compatibility](https://github.com/sass/sassc-rails/pull/65)
diff --git a/Rakefile b/Rakefile
index 066491c..bb58a69 100644
--- a/Rakefile
+++ b/Rakefile
@@ -10,12 +10,10 @@ namespace :tests do
   gemfiles = %w[
     sprockets-rails_3_0
     sprockets-rails_2_3
-    sprockets_2_12
     sprockets_3_0
+    sprockets_4_0
     rails_4_2
-    rails_4_1
-    rails_4_0
-    with_sass_rails
+    rails_5_2
   ]
 
   gemfiles.each do |gemfile|
diff --git a/gemfiles/rails_4_1.gemfile b/gemfiles/rails_4_1.gemfile
deleted file mode 100644
index 7d922bf..0000000
--- a/gemfiles/rails_4_1.gemfile
+++ /dev/null
@@ -1,6 +0,0 @@
-source 'https://rubygems.org'
-
-gem "rails", "~> 4.1.0"
-
-# Specify your gem's dependencies in sassc-rails.gemspec
-gemspec path: "../"
diff --git a/gemfiles/rails_4_0.gemfile b/gemfiles/rails_5_2.gemfile
similarity index 81%
rename from gemfiles/rails_4_0.gemfile
rename to gemfiles/rails_5_2.gemfile
index 13998f8..3682fc7 100644
--- a/gemfiles/rails_4_0.gemfile
+++ b/gemfiles/rails_5_2.gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem "rails", "~> 4.0.0"
+gem "rails", "~> 5.2.1"
 
 # Specify your gem's dependencies in sassc-rails.gemspec
 gemspec path: "../"
diff --git a/gemfiles/sprockets-rails_2_3.gemfile b/gemfiles/sprockets-rails_2_3.gemfile
index e6f0913..e378718 100644
--- a/gemfiles/sprockets-rails_2_3.gemfile
+++ b/gemfiles/sprockets-rails_2_3.gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem "sprockets-rails", "~> 2.3.0"
+gem "sprockets-rails", "~> 2.3.3"
 
 # Specify your gem's dependencies in sassc-rails.gemspec
 gemspec path: "../"
diff --git a/gemfiles/sprockets_2_12.gemfile b/gemfiles/sprockets_2_12.gemfile
deleted file mode 100644
index a713fd7..0000000
--- a/gemfiles/sprockets_2_12.gemfile
+++ /dev/null
@@ -1,6 +0,0 @@
-source 'https://rubygems.org'
-
-gem "sprockets", "~> 2.12.0"
-
-# Specify your gem's dependencies in sassc-rails.gemspec
-gemspec path: "../"
diff --git a/gemfiles/with_sass_rails.gemfile b/gemfiles/with_sass_rails.gemfile
deleted file mode 100644
index 6687358..0000000
--- a/gemfiles/with_sass_rails.gemfile
+++ /dev/null
@@ -1,6 +0,0 @@
-source 'https://rubygems.org'
-
-gem "sass-rails"
-
-# Specify your gem's dependencies in sassc-rails.gemspec
-gemspec path: "../"
diff --git a/lib/sassc-rails.rb b/lib/sassc-rails.rb
index 7df8adb..81dd485 100644
--- a/lib/sassc-rails.rb
+++ b/lib/sassc-rails.rb
@@ -1,10 +1,4 @@
 # frozen_string_literal: true
 
-begin
-  require "sass-rails"
-  Rails::Railtie.subclasses.delete Sass::Rails::Railtie
-rescue LoadError
-end
-
 require_relative "sassc/rails"
 
diff --git a/lib/sassc/rails/compressor.rb b/lib/sassc/rails/compressor.rb
index 8e60fc1..a8e32fd 100644
--- a/lib/sassc/rails/compressor.rb
+++ b/lib/sassc/rails/compressor.rb
@@ -1,8 +1,19 @@
 # frozen_string_literal: true
 
 require 'sprockets/sass_compressor'
+require 'securerandom'
 
 class Sprockets::SassCompressor
+  def initialize(options = {})
+    @options = {
+      syntax: :scss,
+      cache: false,
+      read_cache: false,
+      style: :compressed
+    }.merge(options).freeze
+    @cache_key = SecureRandom.uuid
+  end
+
   def call(*args)
     input = if defined?(data)
       data # sprockets 2.x
diff --git a/lib/sassc/rails/template.rb b/lib/sassc/rails/template.rb
index a8294de..e5cf6c7 100644
--- a/lib/sassc/rails/template.rb
+++ b/lib/sassc/rails/template.rb
@@ -1,73 +1,46 @@
 # frozen_string_literal: true
 
 require "sprockets/version"
-
-begin
-  require 'sprockets/sass_processor'
-rescue LoadError
-  require "sprockets/sass_template"
-end
-
+require 'sprockets/sass_processor'
 require "sprockets/utils"
 
 module SassC::Rails
-
-  class SassTemplate < defined?(Sprockets::SassProcessor) ? Sprockets::SassProcessor : Sprockets::SassTemplate
-    module Sprockets3
-      def call(input)
-        context = input[:environment].context_class.new(input)
-
-        options = {
-          filename: input[:filename],
-          line_comments: line_comments?,
-          syntax: self.class.syntax,
-          load_paths: input[:environment].paths,
-          importer: SassC::Rails::Importer,
-          sprockets: {
-            context: context,
-            environment: input[:environment],
-            dependencies: context.metadata[:dependency_paths]
-          }
-        }.merge(config_options) { |*args| safe_merge(*args) }
-
-        engine = ::SassC::Engine.new(input[:data], options)
-
-        css = Sprockets::Utils.module_include(::SassC::Script::Functions, @functions) do
-          engine.render
-        end
-
-        context.metadata.merge(data: css)
+  class SassTemplate < Sprockets::SassProcessor
+    def initialize(options = {}, &block)
+      @cache_version = options[:cache_version]
+      @cache_key = "#{self.class.name}:#{VERSION}:#{SassC::VERSION}:#{@cache_version}".freeze
+      #@importer_class = options[:importer] || Sass::Importers::Filesystem
+      @sass_config = options[:sass_config] || {}
+      @functions = Module.new do
+        include Functions
+        include options[:functions] if options[:functions]
+        class_eval(&block) if block_given?
       end
     end
 
-    module Sprockets2
-      def self.included(base)
-        base.class_eval do
-          self.default_mime_type = "text/css"
-        end
+    def call(input)
+      context = input[:environment].context_class.new(input)
+
+      options = {
+        filename: input[:filename],
+        line_comments: line_comments?,
+        syntax: self.class.syntax,
+        load_paths: input[:environment].paths,
+        importer: SassC::Rails::Importer,
+        sprockets: {
+          context: context,
+          environment: input[:environment],
+          dependencies: context.metadata[:dependency_paths]
+        }
+      }.merge(config_options) { |*args| safe_merge(*args) }
+
+      engine = ::SassC::Engine.new(input[:data], options)
+
+      css = Sprockets::Utils.module_include(::SassC::Script::Functions, @functions) do
+        engine.render
       end
 
-      def evaluate(context, locals, &block)
-        options = {
-          filename: eval_file,
-          line_comments: line_comments?,
-          syntax: syntax,
-          load_paths: context.environment.paths,
-          importer: SassC::Rails::Importer,
-          sprockets: {
-            context: context,
-            environment: context.environment
-          }
-        }.merge(config_options, &method(:safe_merge))
-
-        ::SassC::Engine.new(data, options).render
-      end
-    end
-
-    if Sprockets::VERSION > "3.0.0"
-      include Sprockets3
-    else
-      include Sprockets2
+      context.metadata.merge(data: css)
     end
 
     def config_options
@@ -106,20 +79,34 @@ def safe_merge(key, left, right)
         right
       end
     end
-  end
 
-  class ScssTemplate < SassTemplate
-    unless Sprockets::VERSION > "3.0.0"
-      self.default_mime_type = 'text/css'
-    end
+    # The methods in the Functions module were copied here from sprockets in order to
+    # override the Value class names (e.g. ::SassC::Script::Value::String)
+    module Functions
+      def asset_path(path, options = {})
+        path = path.value
 
-    # Sprockets 3
-    def self.syntax
-      :scss
+        path, _, query, fragment = URI.split(path)[5..8]
+        path     = sprockets_context.asset_path(path, options)
+        query    = "?#{query}" if query
+        fragment = "##{fragment}" if fragment
+
+        ::SassC::Script::Value::String.new("#{path}#{query}#{fragment}", :string)
+      end
+
+      def asset_url(path, options = {})
+        ::SassC::Script::Value::String.new("url(#{asset_path(path, options).value})")
+      end
+
+      def asset_data_url(path)
+        url = sprockets_context.asset_data_uri(path.value)
+        ::SassC::Script::Value::String.new("url(" + url + ")")
+      end
     end
+  end
 
-    # Sprockets 2
-    def syntax
+  class ScssTemplate < SassTemplate
+    def self.syntax
       :scss
     end
   end
diff --git a/lib/sassc/rails/version.rb b/lib/sassc/rails/version.rb
index 65901d4..29ba7ed 100644
--- a/lib/sassc/rails/version.rb
+++ b/lib/sassc/rails/version.rb
@@ -2,6 +2,6 @@
 
 module SassC
   module Rails
-    VERSION = "1.3.0"
+    VERSION = "2.0.0"
   end
 end
diff --git a/sassc-rails.gemspec b/sassc-rails.gemspec
index 40674e1..68ffc39 100644
--- a/sassc-rails.gemspec
+++ b/sassc-rails.gemspec
@@ -23,14 +23,10 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency 'mocha'
 
-  # Unfortunately we require sass for now, so that we can
-  # reuse portions of the Sprockets template
-  spec.add_dependency 'sass'
-  spec.add_dependency "sassc", "~> 1.9"
-
+  spec.add_dependency "sassc", ">= 2.0"
   spec.add_dependency "tilt"
 
   spec.add_dependency 'railties', '>= 4.0.0'
-  spec.add_dependency 'sprockets', '> 2.11'
+  spec.add_dependency 'sprockets', '> 3.0'
   spec.add_dependency 'sprockets-rails'
 end
diff --git a/test/sassc_rails_test.rb b/test/sassc_rails_test.rb
index 321fcd8..29265ce 100644
--- a/test/sassc_rails_test.rb
+++ b/test/sassc_rails_test.rb
@@ -2,7 +2,7 @@
 
 require "test_helper"
 
-class SassRailsTest < MiniTest::Unit::TestCase
+class SassRailsTest < MiniTest::Test
   attr_reader :app
 
   def setup
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 433b6a9..8b38c02 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -10,7 +10,7 @@
 require 'rails'
 require 'bundler/setup'
 require "minitest/autorun"
-require 'mocha/mini_test'
+require 'mocha/minitest'
 
 Bundler.require