diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ffa9c0..5504297 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [Unreleased]
+
+### Added
+
+- `Innmind\OperatingSystem\Config::withIO()`
+
 ## 6.0.0 - 2025-05-24
 
 ### Added
diff --git a/src/Config.php b/src/Config.php
index d8b279d..afdf2f4 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -211,6 +211,30 @@ public function mapHalt(\Closure $map): self
         );
     }
 
+    /**
+     * @psalm-mutation-free
+     */
+    public function withIO(IO $io): self
+    {
+        return new self(
+            $this->clock,
+            $this->mapClock,
+            $io,
+            $this->halt,
+            $this->mapHalt,
+            $this->path,
+            $this->httpTransport,
+            $this->mapHttpTransport,
+            $this->sql,
+            $this->mapSql,
+            $this->mapServerControl,
+            $this->mapServerStatus,
+            $this->mapFileWatch,
+            $this->filesystem,
+            $this->mapFilesystem,
+        );
+    }
+
     /**
      * @psalm-mutation-free
      */