diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b32458..b117236 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        activerecord: [ '6.1', '7.0', '7.1', '7.2', '8.0' ]
+        activerecord: [ '6.1', '7.0', '7.1', '7.2', '8.0', '8.1' ]
         ruby: [ '3.2', '3.3', '3.4' ]
         exclude:
           - activerecord: '6.1'
diff --git a/Appraisals b/Appraisals
index 27219e5..02b5237 100644
--- a/Appraisals
+++ b/Appraisals
@@ -21,3 +21,7 @@ end
 appraise "activerecord_8.0" do
   gem "activerecord", ">= 8.0.0", "< 8.1"
 end
+
+appraise "activerecord_8.1" do
+  gem "activerecord", ">= 8.1.0", "< 8.2"
+end
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cef534..96a1ecb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # activerecord-postgres_pub_sub
 
+## v3.4.0
+- Add support for ActiveRecord 8.1
+
 ## v3.3.0
 - Remove support for Ruby 3.0 and 3.1
 - Switch to using RubyGems trusted publishing instead of manual releases
diff --git a/activerecord-postgres_pub_sub.gemspec b/activerecord-postgres_pub_sub.gemspec
index 76efbaa..3a31101 100644
--- a/activerecord-postgres_pub_sub.gemspec
+++ b/activerecord-postgres_pub_sub.gemspec
@@ -36,7 +36,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
   spec.required_ruby_version = ">= 3.2.0"
 
-  spec.add_runtime_dependency "activerecord", "> 6.0", "< 8.1"
+  spec.add_runtime_dependency "activerecord", "> 6.0", "< 8.2"
   spec.add_runtime_dependency "pg", "~> 1.1"
   spec.add_runtime_dependency "private_attr"
   spec.add_runtime_dependency "with_advisory_lock"
diff --git a/gemfiles/activerecord_8.1.gemfile b/gemfiles/activerecord_8.1.gemfile
new file mode 100644
index 0000000..6ad4e24
--- /dev/null
+++ b/gemfiles/activerecord_8.1.gemfile
@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "activerecord", ">= 8.1.0", "< 8.2"
+
+gemspec path: "../"
diff --git a/lib/activerecord/postgres_pub_sub/version.rb b/lib/activerecord/postgres_pub_sub/version.rb
index 72b61b7..3537a5b 100644
--- a/lib/activerecord/postgres_pub_sub/version.rb
+++ b/lib/activerecord/postgres_pub_sub/version.rb
@@ -2,6 +2,6 @@
 
 module ActiveRecord
   module PostgresPubSub
-    VERSION = "3.3.0"
+    VERSION = "3.4.0"
   end
 end