diff --git a/CHANGELOG-6.x.md b/CHANGELOG-6.x.md
index 571e1b18..3d0a2bfb 100644
--- a/CHANGELOG-6.x.md
+++ b/CHANGELOG-6.x.md
@@ -7,6 +7,10 @@ using the [Keep a CHANGELOG](http://keepachangelog.com) principles.
 
 ## [Unreleased]
 
+### Fixed
+
+- [GH-313](https://github.com/llaville/php-compatinfo/issues/313) Cannot install CompatInfo as a vendor dependency
+
 ## [6.0.1] - 2021-12-13
 
 ### Fixed
diff --git a/config/set/default.php b/config/set/default.php
index 53453193..43640a4e 100644
--- a/config/set/default.php
+++ b/config/set/default.php
@@ -32,7 +32,12 @@
  * @return void
  */
 return static function (ContainerConfigurator $containerConfigurator): void {
-    $containerConfigurator->import(dirname(__DIR__, 2) . '/vendor/bartlett/php-compatinfo-db/config/set/default.php');
+    if (file_exists(dirname(__DIR__, 2) . '/vendor')) {
+        $configSet = dirname(__DIR__, 2) . '/vendor/bartlett/php-compatinfo-db/config/set/default.php';
+    } else {
+        $configSet = dirname(__DIR__, 3) . '/php-compatinfo-db/config/set/default.php';
+    }
+    $containerConfigurator->import($configSet);
     $containerConfigurator->import(__DIR__ . '/common.php');
     $containerConfigurator->import(__DIR__ . '/../packages/messenger.php');