diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 6a8ad9c..48ef63a 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -48,7 +48,7 @@ jobs:
       - name: Enable pnpm cache
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'pnpm'
           cache-dependency-path: 'docs/pnpm-lock.yaml'
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 25210c0..bcb6c6b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -34,7 +34,7 @@ jobs:
       - name: Enable pnpm cache
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: pnpm
           cache-dependency-path: |
             pnpm-lock.yaml
@@ -107,7 +107,7 @@ jobs:
       - name: Setup Node.js (docs)
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -117,7 +117,7 @@ jobs:
       - name: Enable pnpm cache (docs)
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: pnpm
           cache-dependency-path: docs/pnpm-lock.yaml
 
diff --git a/lib/log_struct/semantic_logger/setup.rb b/lib/log_struct/semantic_logger/setup.rb
index 49e2eb0..17da83c 100644
--- a/lib/log_struct/semantic_logger/setup.rb
+++ b/lib/log_struct/semantic_logger/setup.rb
@@ -221,6 +221,12 @@ def self.replace_rails_logger(app)
         # Replace Rails.logger
         Rails.logger = logger
 
+        # Rails assigns ActiveSupport::LogSubscriber.logger once during boot
+        # (in the active_support.set_log_subscriber_logger initializer), so log
+        # subscribers such as Lograge keep writing to the original boot logger
+        # unless this reference is updated along with Rails.logger.
+        ActiveSupport::LogSubscriber.logger = logger
+
         # Also replace various component loggers
         ActiveRecord::Base.logger = logger if defined?(ActiveRecord::Base)
         ActionController::Base.logger = logger if defined?(ActionController::Base)
diff --git a/rails_test_app/create_app.rb b/rails_test_app/create_app.rb
index 482e8cc..a695d55 100755
--- a/rails_test_app/create_app.rb
+++ b/rails_test_app/create_app.rb
@@ -356,7 +356,12 @@ def copy_template(file, target_path = nil)
         SimpleCov.start do
           root_path = File.expand_path('../../..', __dir__)
           coverage_dir File.join(root_path, 'coverage_rails')
-          add_filter '/rails_test_app/'
+          # SimpleCov >= 1.0 deprecated `add_filter` in favor of `skip`
+          if SimpleCov.respond_to?(:skip)
+            SimpleCov.skip '/rails_test_app/'
+          else
+            SimpleCov.add_filter '/rails_test_app/'
+          end
           enable_coverage :branch
           primary_coverage :branch
         end
diff --git a/rails_test_app/templates/test/integration/logging_integration_test.rb b/rails_test_app/templates/test/integration/logging_integration_test.rb
index 65f01f9..e72b071 100644
--- a/rails_test_app/templates/test/integration/logging_integration_test.rb
+++ b/rails_test_app/templates/test/integration/logging_integration_test.rb
@@ -4,6 +4,13 @@
 require "test_helper"
 
 class LoggingIntegrationTest < ActionDispatch::IntegrationTest
+  # Rails assigns ActiveSupport::LogSubscriber.logger once during boot, so log
+  # subscribers (Lograge, Active Record, Action Controller) write to that
+  # reference rather than looking up Rails.logger on each event.
+  def test_log_subscribers_use_the_logstruct_logger
+    assert_kind_of LogStruct::SemanticLogger::Logger, ActiveSupport::LogSubscriber.logger
+  end
+
   # Basic test to ensure the Rails app is working
   def test_healthcheck_works
     get "/health"
diff --git a/rails_test_app/templates/test/test_helper.rb b/rails_test_app/templates/test/test_helper.rb
index 0a32f2a..5776d96 100644
--- a/rails_test_app/templates/test/test_helper.rb
+++ b/rails_test_app/templates/test/test_helper.rb
@@ -7,7 +7,15 @@
 require "open3"
 require "timeout"
 
-unless SimpleCov.running
+# SimpleCov >= 1.0 replaced the `running` accessor with `active_session?`
+simplecov_started =
+  if SimpleCov.respond_to?(:active_session?)
+    SimpleCov.active_session?
+  else
+    SimpleCov.running
+  end
+
+unless simplecov_started
   SimpleCov.formatters = [
     SimpleCov::Formatter::HTMLFormatter,
     SimpleCov::Formatter::JSONFormatter
@@ -19,7 +27,12 @@
     gem_path = File.expand_path("../../../../", __FILE__)
     SimpleCov.root(gem_path)
 
-    add_filter "rails_test_app"
+    # SimpleCov >= 1.0 deprecated `add_filter` in favor of `skip`
+    if SimpleCov.respond_to?(:skip)
+      SimpleCov.skip "rails_test_app"
+    else
+      SimpleCov.add_filter "rails_test_app"
+    end
 
     coverage_dir "coverage_rails"