diff --git a/.gitignore b/.gitignore
index 2f5790c..18dfb74 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 /vendor/
 /.idea/
 /bin/
-/3.0/
-/3.1/
 /3.2/
+/3.3/
diff --git a/composer.json b/composer.json
index 329b631..16723ca 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
 	"name": "phpbb/translation-validator",
 	"description": "A language package validator for phpBB language packs. Language packs are required to pass the validator when submitted to the language pack database.",
 	"homepage": "https://github.com/phpbb/phpbb-translation-validator",
-	"version": "1.5.1",
+	"version": "1.5.2",
 	"license": "GPL-2.0-only",
 	"authors": [
 		{
diff --git a/src/Phpbb/TranslationValidator/Command/ValidateCommand.php b/src/Phpbb/TranslationValidator/Command/ValidateCommand.php
index 9a65e23..5ca77b7 100644
--- a/src/Phpbb/TranslationValidator/Command/ValidateCommand.php
+++ b/src/Phpbb/TranslationValidator/Command/ValidateCommand.php
@@ -52,9 +52,9 @@ protected function execute(InputInterface $input, OutputInterface $output)
 		$displayNotices = $input->getOption('display-notices');
 		$safeMode = $input->getOption('safe-mode');
 
-		if (!in_array($phpbbVersion, array('3.2')))
+		if (!in_array($phpbbVersion, array('3.2', '3.3')))
 		{
-			throw new \RuntimeException('Invalid phpbb-version, allowed versions: 3.2');
+			throw new \RuntimeException('Invalid phpbb-version, allowed versions: 3.2 and 3.3');
 		}
 
 		$output = new Output($output, $debug);
diff --git a/translation.php b/translation.php
index 42fc851..b818804 100644
--- a/translation.php
+++ b/translation.php
@@ -8,7 +8,7 @@
  *
  */
 
-const TRANSLATION_VALIDATOR_VERSION = '1.5.1';
+const TRANSLATION_VALIDATOR_VERSION = '1.5.2';
 
 require 'vendor/autoload.php';