diff --git a/src/Type/FileTypeMapper.php b/src/Type/FileTypeMapper.php
index <HASH>..<HASH> 100644
--- a/src/Type/FileTypeMapper.php
+++ b/src/Type/FileTypeMapper.php
@@ -31,7 +31,7 @@ class FileTypeMapper
 
 	public function getTypeMap(string $fileName): array
 	{
-		$cacheKey = sprintf('%s-%d-v3', $fileName, filemtime($fileName));
+		$cacheKey = sprintf('%s-%d-v4', $fileName, filemtime($fileName));
 		$cachedResult = $this->cache->load($cacheKey);
 		if ($cachedResult === null) {
 			$typeMap = $this->createTypeMap($fileName);
FileTypeMapper - bump cache version because of change in StaticType and bugfixes