diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index f74b5a0..62e58f8 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,4 +17,4 @@ jobs:
         bundler-cache: true
 
     - name: Outdated readme check
-      run: bundle exec readme:outdated
+      run: bundle exec rake readme:outdated
diff --git a/exe/atlasq b/exe/atlasq
index 6d5573b..2cb11d2 100755
--- a/exe/atlasq
+++ b/exe/atlasq
@@ -5,6 +5,9 @@ debug = true if ARGV.delete("-d")
 debug = true if ARGV.delete("--debug")
 ENV["ATLASQ_DEBUG"] = "1" if debug
 
+# Avoid warnings on Ruby 2.7 related to pattern matching.
+Warning[:experimental] = false
+
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)
 require "atlasq"
 
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 8211a0d..a5033c6 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# Avoid accidental debug output causing test failures.
 ENV.delete("ATLASQ_DEBUG")
 
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)