diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 2d06e60..97ebf1e 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -6,7 +6,13 @@ jobs:
     strategy:
       matrix:
         ruby-version: ['2.4', '2.5']
+        rails-version: ['4', '5', '6']
+        exclude:
+          - ruby-version: 2.4
+            rails-version: 6
       fail-fast: false
+    env:
+      BUNDLER_GEMFILE: ${{ github.workspace }}/Gemfile.rails${{ matrix.rails-version }}
     steps:
       - uses: actions/checkout@v2
       - name: Install cURL Headers
diff --git a/.gitignore b/.gitignore
index c4f28b2..ea6e82b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,4 @@ test/dummy/log/*.log
 test/dummy/tmp/
 test/dummy/.sass-cache
 .env
-Gemfile.lock
+Gemfile*.lock
diff --git a/Gemfile.rails4 b/Gemfile.rails4
new file mode 100644
index 0000000..dddc0df
--- /dev/null
+++ b/Gemfile.rails4
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'rails', '~> 4.0'
diff --git a/Gemfile.rails5 b/Gemfile.rails5
new file mode 100644
index 0000000..affefd8
--- /dev/null
+++ b/Gemfile.rails5
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'rails', '~> 5.0'
diff --git a/Gemfile.rails6 b/Gemfile.rails6
new file mode 100644
index 0000000..67d5455
--- /dev/null
+++ b/Gemfile.rails6
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'rails', '~> 6.0'
diff --git a/Gemfile.rails7 b/Gemfile.rails7
new file mode 100644
index 0000000..6ed509b
--- /dev/null
+++ b/Gemfile.rails7
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'rails', '~> 7.0'
diff --git a/resumable_upload.gemspec b/resumable_upload.gemspec
index 8cb4913..9d593f7 100644
--- a/resumable_upload.gemspec
+++ b/resumable_upload.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
   s.test_files = Dir["test/**/*"]
 
-  s.add_dependency "rails", "~> 4.0"
+  s.add_dependency "rails", ">=4", "<7"
   s.add_dependency "fog", "~> 1.36"
   s.add_dependency "dotenv"