diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index adfdac0..d436398 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,12 +10,14 @@ jobs:
     strategy:
       matrix:
         ruby_version: [2.4.6, 2.5.5, 2.6.3]
-        gemfile: [rails_5_0_sprockets_rails_2, rails_5_0, rails_5_1_sprockets_rails_2, rails_5_1, rails_5_2_sprockets_rails_2, rails_5_2, rails_6_0_sprockets_rails_2, rails_6_0]
+        gemfile: [rails_5_0_sprockets_rails_2, rails_5_0_sprockets_3, rails_5_0_sprockets_4, rails_5_1_sprockets_rails_2, rails_5_1_sprockets_3, rails_5_1_sprockets_4, rails_5_2_sprockets_rails_2, rails_5_2_sprockets_3, rails_5_2_sprockets_4, rails_6_0_sprockets_rails_2, rails_6_0_sprockets_3, rails_6_0_sprockets_4]
         exclude:
         - ruby_version: 2.4.6
           gemfile: rails_6_0_sprockets_rails_2
         - ruby_version: 2.4.6
-          gemfile: rails_6_0
+          gemfile: rails_6_0_sprockets_3
+        - ruby_version: 2.4.6
+          gemfile: rails_6_0_sprockets_4
       fail-fast: false
 
     steps:
diff --git a/Appraisals b/Appraisals
index 16656c5..acfe2bc 100644
--- a/Appraisals
+++ b/Appraisals
@@ -3,8 +3,14 @@ appraise "rails-5-0-sprockets-rails-2" do
   gem "sprockets-rails", "~> 2.0"
 end
 
-appraise "rails-5-0" do
+appraise "rails-5-0-sprockets-3" do
   gem "rails", "~> 5.0.0"
+  gem "sprockets", "~> 3.0"
+end
+
+appraise "rails-5-0-sprockets-4" do
+  gem "rails", "~> 5.0.0"
+  gem "sprockets", "~> 4.0.0.beta1"
 end
 
 appraise "rails-5-1-sprockets-rails-2" do
@@ -12,8 +18,14 @@ appraise "rails-5-1-sprockets-rails-2" do
   gem "sprockets-rails", "~> 2.0"
 end
 
-appraise "rails-5-1" do
+appraise "rails-5-1-sprockets-3" do
+  gem "rails", "~> 5.1.0"
+  gem "sprockets", "~> 3.0"
+end
+
+appraise "rails-5-1-sprockets-4" do
   gem "rails", "~> 5.1.0"
+  gem "sprockets", "~> 4.0.0.beta1"
 end
 
 appraise "rails-5-2-sprockets-rails-2" do
@@ -21,8 +33,14 @@ appraise "rails-5-2-sprockets-rails-2" do
   gem "sprockets-rails", "~> 2.0"
 end
 
-appraise "rails-5-2" do
+appraise "rails-5-2-sprockets-3" do
   gem "rails", "~> 5.2.0"
+  gem "sprockets", "~> 3.0"
+end
+
+appraise "rails-5-2-sprockets-4" do
+  gem "rails", "~> 5.2.0"
+  gem "sprockets", "~> 4.0.0.beta1"
 end
 
 appraise "rails-6-0-sprockets-rails-2" do
@@ -30,6 +48,12 @@ appraise "rails-6-0-sprockets-rails-2" do
   gem "sprockets-rails", "~> 2.0"
 end
 
-appraise "rails-6-0" do
+appraise "rails-6-0-sprockets-3" do
+  gem "rails", "~> 6.0.0"
+  gem "sprockets", "~> 3.0"
+end
+
+appraise "rails-6-0-sprockets-4" do
   gem "rails", "~> 6.0.0"
+  gem "sprockets", "~> 4.0.0.beta1"
 end
diff --git a/gemfiles/rails_5_0.gemfile b/gemfiles/rails_5_0_sprockets_3.gemfile
similarity index 81%
rename from gemfiles/rails_5_0.gemfile
rename to gemfiles/rails_5_0_sprockets_3.gemfile
index 10f52e7..81cfdc5 100644
--- a/gemfiles/rails_5_0.gemfile
+++ b/gemfiles/rails_5_0_sprockets_3.gemfile
@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 5.0.0"
+gem "sprockets", "~> 3.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_5_0_sprockets_4.gemfile b/gemfiles/rails_5_0_sprockets_4.gemfile
new file mode 100644
index 0000000..a2bd5ac
--- /dev/null
+++ b/gemfiles/rails_5_0_sprockets_4.gemfile
@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 5.0.0"
+gem "sprockets", "~> 4.0.0.beta1"
+
+gemspec path: "../"
diff --git a/gemfiles/rails_5_1.gemfile b/gemfiles/rails_5_1_sprockets_3.gemfile
similarity index 81%
rename from gemfiles/rails_5_1.gemfile
rename to gemfiles/rails_5_1_sprockets_3.gemfile
index 6100e83..c2ed00e 100644
--- a/gemfiles/rails_5_1.gemfile
+++ b/gemfiles/rails_5_1_sprockets_3.gemfile
@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 5.1.0"
+gem "sprockets", "~> 3.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_5_1_sprockets_4.gemfile b/gemfiles/rails_5_1_sprockets_4.gemfile
new file mode 100644
index 0000000..d1c3a3b
--- /dev/null
+++ b/gemfiles/rails_5_1_sprockets_4.gemfile
@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 5.1.0"
+gem "sprockets", "~> 4.0.0.beta1"
+
+gemspec path: "../"
diff --git a/gemfiles/rails_5_2.gemfile b/gemfiles/rails_5_2_sprockets_3.gemfile
similarity index 81%
rename from gemfiles/rails_5_2.gemfile
rename to gemfiles/rails_5_2_sprockets_3.gemfile
index 5a706dc..d8ec964 100644
--- a/gemfiles/rails_5_2.gemfile
+++ b/gemfiles/rails_5_2_sprockets_3.gemfile
@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 5.2.0"
+gem "sprockets", "~> 3.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_5_2_sprockets_4.gemfile b/gemfiles/rails_5_2_sprockets_4.gemfile
new file mode 100644
index 0000000..e8c2463
--- /dev/null
+++ b/gemfiles/rails_5_2_sprockets_4.gemfile
@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 5.2.0"
+gem "sprockets", "~> 4.0.0.beta1"
+
+gemspec path: "../"
diff --git a/gemfiles/rails_6_0.gemfile b/gemfiles/rails_6_0_sprockets_3.gemfile
similarity index 81%
rename from gemfiles/rails_6_0.gemfile
rename to gemfiles/rails_6_0_sprockets_3.gemfile
index 15b9b27..bff40ec 100644
--- a/gemfiles/rails_6_0.gemfile
+++ b/gemfiles/rails_6_0_sprockets_3.gemfile
@@ -3,5 +3,6 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 6.0.0"
+gem "sprockets", "~> 3.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_6_0_sprockets_4.gemfile b/gemfiles/rails_6_0_sprockets_4.gemfile
new file mode 100644
index 0000000..4e945a1
--- /dev/null
+++ b/gemfiles/rails_6_0_sprockets_4.gemfile
@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 6.0.0"
+gem "sprockets", "~> 4.0.0.beta1"
+
+gemspec path: "../"
diff --git a/spritely.gemspec b/spritely.gemspec
index c717593..fcfaafd 100644
--- a/spritely.gemspec
+++ b/spritely.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'chunky_png', '~> 1.3'
   s.add_dependency 'sass', '~> 3.3'
-  s.add_dependency 'sprockets', '~> 3.0'
+  s.add_dependency 'sprockets', '>= 3.0', '< 5'
 
   s.add_development_dependency 'activesupport'
   s.add_development_dependency 'pry-byebug'