diff --git a/src/Repositories/RegexRepository.php b/src/Repositories/RegexRepository.php
index b1f1507..501860b 100644
--- a/src/Repositories/RegexRepository.php
+++ b/src/Repositories/RegexRepository.php
@@ -13,12 +13,12 @@ public function __construct(
 
     public static function checkAndSanitize(string $regex, string $replace, string $content, int &$hits = 0): string
     {
-        return preg_replace("~$regex~i", $replace, $content, -1, $hits);
+        return preg_replace("~$regex~Si", $replace, $content, -1, $hits);
     }
 
     public static function check(string $regex, string $content): int
     {
-        return preg_match_all("~$regex~i", $content);
+        return preg_match_all("~$regex~Si", $content);
     }
 
     public function getRegexCollection(): Collection