diff --git a/config.stub.neon b/config.stub.neon
index dc51281..056d123 100644
--- a/config.stub.neon
+++ b/config.stub.neon
@@ -4,6 +4,7 @@ parameters:
 	wwwDir: absolute path to the directory containing the index.php entry file
 	tempDir: absolute path to the directory for temporary files
 	vendorDir: absolute path to the directory where Composer installs libraries
+	rootDir: absolute path to the root project directory
 	debugMode: indicates whether the application is in debug mode
 	productionMode: opposite of debugMode
 	consoleMode: indicates whether the request came through the command line (CLI)
diff --git a/src/Bootstrap/Configurator.php b/src/Bootstrap/Configurator.php
index 704e201..1b06830 100644
--- a/src/Bootstrap/Configurator.php
+++ b/src/Bootstrap/Configurator.php
@@ -173,6 +173,9 @@ protected function getDefaultParameters(): array
 			'appDir' => isset($trace[1]['file']) ? dirname($trace[1]['file']) : null,
 			'wwwDir' => isset($last['file']) ? dirname($last['file']) : null,
 			'vendorDir' => $loaderRc ? dirname($loaderRc->getFileName(), 2) : null,
+			'rootDir' => class_exists(InstalledVersions::class)
+				? rtrim(Nette\Utils\FileSystem::normalizePath(InstalledVersions::getRootPackage()['install_path']), '\\/')
+				: null,
 			'debugMode' => $debugMode,
 			'productionMode' => !$debugMode,
 			'consoleMode' => PHP_SAPI === 'cli',
diff --git a/tests/Bootstrap/Configurator.developmentContainer.phpt b/tests/Bootstrap/Configurator.developmentContainer.phpt
index 0b0168d..fa25565 100644
--- a/tests/Bootstrap/Configurator.developmentContainer.phpt
+++ b/tests/Bootstrap/Configurator.developmentContainer.phpt
@@ -37,6 +37,7 @@ Assert::same([
 	'appDir' => __DIR__,
 	'wwwDir' => __DIR__,
 	'vendorDir' => dirname(__DIR__, 2) . DIRECTORY_SEPARATOR . 'vendor',
+	'rootDir' => dirname(__DIR__, 2),
 	'debugMode' => true,
 	'productionMode' => false,
 	'consoleMode' => PHP_SAPI === 'cli',
diff --git a/tests/Bootstrap/Configurator.minimalContainer.phpt b/tests/Bootstrap/Configurator.minimalContainer.phpt
index 86b7a77..1c8e5a9 100644
--- a/tests/Bootstrap/Configurator.minimalContainer.phpt
+++ b/tests/Bootstrap/Configurator.minimalContainer.phpt
@@ -26,6 +26,7 @@ Assert::same([
 	'appDir' => __DIR__,
 	'wwwDir' => __DIR__,
 	'vendorDir' => dirname(__DIR__, 2) . DIRECTORY_SEPARATOR . 'vendor',
+	'rootDir' => dirname(__DIR__, 2),
 	'debugMode' => false,
 	'productionMode' => true,
 	'consoleMode' => PHP_SAPI === 'cli',