diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6944826..f22f06b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.4] - 2026-01-20
+
+### Changed
+
+- Updated `JobSerializer#serialize?` to check for `LinkedinUrlValue::Base` instead of `klass`. This fixes `ActiveJob::SerializationError: Unsupported argument type: LinkedinUrlValue::AsBlank` errors in Rails 8.1 by ensuring all LinkedinUrlValue types (Regular, Exceptional, AsBlank) can be serialized.
+
 ## [0.2.3] - 2026-01-02
 
 ### Changed
diff --git a/lib/linkedin_url_value/job_serializer.rb b/lib/linkedin_url_value/job_serializer.rb
index d873360..e562a39 100644
--- a/lib/linkedin_url_value/job_serializer.rb
+++ b/lib/linkedin_url_value/job_serializer.rb
@@ -7,7 +7,7 @@ def klass
     end
 
     def serialize?(argument)
-      argument.is_a?(klass)
+      argument.is_a?(LinkedinUrlValue::Base)
     end
 
     def serialize(value)
diff --git a/linkedin_url_value.gemspec b/linkedin_url_value.gemspec
index 1a77968..a3cd0c6 100644
--- a/linkedin_url_value.gemspec
+++ b/linkedin_url_value.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name = "linkedin_url_value"
-  spec.version = "0.2.3"
+  spec.version = "0.2.4"
   spec.authors = ["Grant Petersen-Speelman"]
   spec.email = ["grant@nexl.io"]