diff --git a/composer.json b/composer.json
index 8b03bfc..1636801 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "wp-cli/wp-cli": "^2"
     },
     "require-dev": {
-        "wp-cli/wp-cli-tests": "^3.1"
+        "wp-cli/wp-cli-tests": "^4"
     },
     "config": {
         "platform": {
diff --git a/find-command.php b/find-command.php
index 38781ab..9eb0367 100644
--- a/find-command.php
+++ b/find-command.php
@@ -4,10 +4,9 @@
 	return;
 }
 
-$wpcli_find_autoloader = dirname( __FILE__ ) . '/vendor/autoload.php';
+$wpcli_find_autoloader = __DIR__ . '/vendor/autoload.php';
 if ( file_exists( $wpcli_find_autoloader ) ) {
 	require_once $wpcli_find_autoloader;
 }
 
 WP_CLI::add_command( 'find', 'Find_Command' );
-
diff --git a/src/Find_Command.php b/src/Find_Command.php
index ed17859..dfb2871 100644
--- a/src/Find_Command.php
+++ b/src/Find_Command.php
@@ -310,9 +310,9 @@ private function recurse_directory( $path ) {
 		$this->log( "Recursing into '{$path}'" );
 		foreach ( $iterator as $file_info ) {
 			if ( $file_info->isDir() ) {
-				$this->current_depth++;
+				++$this->current_depth;
 				$this->recurse_directory( $file_info->getPathname() );
-				$this->current_depth--;
+				--$this->current_depth;
 			}
 		}
 	}
@@ -368,5 +368,4 @@ private static function format_log_timestamp( $s ) {
 		$s -= $m * 60;
 		return $h . ':' . sprintf( '%02d', $m ) . ':' . sprintf( '%02d', $s );
 	}
-
 }