diff --git a/Changelog.md b/Changelog.md
index 50f7e1766..052c2e8df 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,9 @@
+# v0.11.27
+
+* [#1413](https://github.com/mbj/mutant/pull/1413)
+
+  Add `Process.warmup` optimization for ruby-3.3+ which yields a noticable speed improvement.
+
 # v0.11.26 2023-12-01
 
 * [#1409](https://github.com/mbj/mutant/pull/1409)
diff --git a/lib/mutant/mutation/runner.rb b/lib/mutant/mutation/runner.rb
index 701274f22..aae49ed45 100644
--- a/lib/mutant/mutation/runner.rb
+++ b/lib/mutant/mutation/runner.rb
@@ -15,6 +15,8 @@ def self.call(env)
       def self.run_mutation_analysis(env)
         reporter = reporter(env)
 
+        warmup
+
         env
           .record(:analysis) { run_driver(reporter, async_driver(env)) }
           .tap { |result| env.record(:report) { reporter.report(result) } }
@@ -52,6 +54,10 @@ def self.mutation_test_config(env)
       end
       private_class_method :mutation_test_config
 
+      def self.warmup
+        Process.warmup if Process.respond_to?(:warmup)
+      end
+
       def self.reporter(env)
         env.config.reporter
       end