diff --git a/lib/paper_trail_background.rb b/lib/paper_trail_background.rb
index 2587b10..06485dc 100644
--- a/lib/paper_trail_background.rb
+++ b/lib/paper_trail_background.rb
@@ -11,6 +11,6 @@ module PaperTrailBackground
   mattr_accessor :version_job_class
 
   def self.version_job_class
-    @@version_job_class.constantize
+    (@@version_job_class || "VersionJob") .constantize
   end
 end
diff --git a/paper_trail_background.gemspec b/paper_trail_background.gemspec
index 432b547..2ee3ea2 100644
--- a/paper_trail_background.gemspec
+++ b/paper_trail_background.gemspec
@@ -26,6 +26,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'sidekiq', '~> 6.2.2'
   spec.add_development_dependency 'sqlite3', '~> 1.4.2'
 
-  spec.add_runtime_dependency 'ar_after_transaction', '~> 0.7.0'
-  spec.add_runtime_dependency 'paper_trail', '~> 12.0.0'
+  spec.add_runtime_dependency 'ar_after_transaction', '~> 0.8.0'
+  spec.add_runtime_dependency 'paper_trail', '~> 12.2.0'
 end
diff --git a/test/paper_trail/background_test.rb b/test/paper_trail/background_test.rb
index a6db36c..0762d29 100644
--- a/test/paper_trail/background_test.rb
+++ b/test/paper_trail/background_test.rb
@@ -1,7 +1,7 @@
 require 'test_helper'
 
-class PaperTrail::Background::Test < ActiveSupport::TestCase
+class PaperTrailBackground::Test < ActiveSupport::TestCase
   test "truth" do
-    assert_kind_of Module, PaperTrail::Background
+    assert_kind_of Module, PaperTrailBackground
   end
 end