diff --git a/test/ruby/test_require.rb b/test/ruby/test_require.rb
index 4217006d61..5aadf779fb 100644
--- a/test/ruby/test_require.rb
+++ b/test/ruby/test_require.rb
@@ -866,7 +866,7 @@ class TestRequire < Test::Unit::TestCase
       File.unlink(f.path)
       File.mkfifo(f.path)
 
-      assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 3)
+      assert_separately(["-", f.path], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 10)
       begin;
         path = ARGV[0]
         th = Thread.current