diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d7f88da..a8e6f9c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,6 +24,7 @@ jobs:
           - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
           - head
         include:
           - { os: windows , ruby: mingw }
diff --git a/test/test_webrick_server.rb b/test/test_webrick_server.rb
index 268a013..dc725a3 100644
--- a/test/test_webrick_server.rb
+++ b/test/test_webrick_server.rb
@@ -6,7 +6,6 @@
 require_relative 'webrick_testing'
 require "xmlrpc/server"
 require 'xmlrpc/client'
-require 'logger'
 
 module TestXMLRPC
 class Test_Webrick < Test::Unit::TestCase