diff --git a/components/Tag/Tag.php b/components/Tag/Tag.php
index 6afb0d8015..61ab27e276 100644
--- a/components/Tag/Tag.php
+++ b/components/Tag/Tag.php
@@ -58,7 +58,7 @@ use Symfony\Component\HttpFoundation\Request;
 class Tag extends Component
 {
     public const MAX_TAG_LENGTH = 64;
-    public const TAG_REGEX      = '/(^|\\s)(#[\\pL\\pN_\\-\\.]{1,64})/u'; // Brion Vibber 2011-02-23 v2:classes/Notice.php:367 function saveTags
+    public const TAG_REGEX      = '/(^|\\s)(#[\\pL\\pN_\\-]{1,64})/u'; // Brion Vibber 2011-02-23 v2:classes/Notice.php:367 function saveTags
     public const TAG_SLUG_REGEX = '[A-Za-z0-9]{1,64}';
 
     public function onAddRoute($r): bool