diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8eb67b1..43e9607 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,3 +10,13 @@ jobs:
           ruby-version: 3.3
           bundler-cache: true
       - run: bundle exec rake test
+  standardrb-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.3
+          bundler-cache: true
+      - run: bundle install
+      - run: bundle exec standardrb --format progress
diff --git a/Gemfile b/Gemfile
index 628a427..56c50b6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,3 +7,4 @@ gem "benchmark-ips"
 gem "memory_profiler"
 gem "minitest"
 gem "rake"
+gem "standard"
diff --git a/lib/logstop/formatter.rb b/lib/logstop/formatter.rb
index ce5651a..d2e2486 100644
--- a/lib/logstop/formatter.rb
+++ b/lib/logstop/formatter.rb
@@ -29,8 +29,12 @@ def call(severity, timestamp, progname, msg)
     end
 
     # for tagged logging
-    def method_missing(method_name, *arguments, &block)
-      @formatter.send(method_name, *arguments, &block)
+    def method_missing(method_name, ...)
+      @formatter.send(method_name, ...)
+    end
+
+    def respond_to_missing?(method, include_private = false)
+      @formatter.respond_to?(method) || super
     end
 
     # for tagged logging
diff --git a/lib/logstop/railtie.rb b/lib/logstop/railtie.rb
index 6f1c683..3957a05 100644
--- a/lib/logstop/railtie.rb
+++ b/lib/logstop/railtie.rb
@@ -4,7 +4,9 @@ class Railtie < Rails::Railtie
       # make broadcaster inherit formatter
       if Rails.logger && Rails.logger.formatter.is_a?(Logstop::Formatter)
         # yes, these are the same, but it works
+        # rubocop:disable Lint/SelfAssignment
         Rails.logger.formatter = Rails.logger.formatter
+        # rubocop:enable Lint/SelfAssignment
       end
     end
   end
diff --git a/logstop.gemspec b/logstop.gemspec
index ef4fcd6..7653507 100644
--- a/logstop.gemspec
+++ b/logstop.gemspec
@@ -1,17 +1,17 @@
 require_relative "lib/logstop/version"
 
 Gem::Specification.new do |spec|
-  spec.name          = "logstop"
-  spec.version       = Logstop::VERSION
-  spec.summary       = "Keep personal data out of your logs"
-  spec.homepage      = "https://github.com/ankane/logstop"
-  spec.license       = "MIT"
+  spec.name = "logstop"
+  spec.version = Logstop::VERSION
+  spec.summary = "Keep personal data out of your logs"
+  spec.homepage = "https://github.com/ankane/logstop"
+  spec.license = "MIT"
 
-  spec.author        = "Andrew Kane"
-  spec.email         = "andrew@ankane.org"
+  spec.author = "Andrew Kane"
+  spec.email = "andrew@ankane.org"
 
-  spec.files         = Dir["*.{md,txt}", "{lib}/**/*"]
-  spec.require_path  = "lib"
+  spec.files = Dir["*.{md,txt}", "{lib}/**/*"]
+  spec.require_path = "lib"
 
   spec.required_ruby_version = ">= 3.1"
 end
diff --git a/test/logstop_test.rb b/test/logstop_test.rb
index 9081f37..782325f 100644
--- a/test/logstop_test.rb
+++ b/test/logstop_test.rb
@@ -99,7 +99,7 @@ def test_tagged_logging
 
   def test_scubber
     scubber = lambda do |msg|
-      msg.gsub(/hello/, "[FILTERED]")
+      msg.gsub("hello", "[FILTERED]")
     end
 
     assert_filtered "hello", scrubber: scubber