diff --git a/www/de/index.xhtml b/www/de/index.xhtml
index be48ab2..418384f 100644
--- a/www/de/index.xhtml
+++ b/www/de/index.xhtml
@@ -5,7 +5,7 @@
   <title>Elwig - Elektronische Winzergenossenschaftsverwaltung</title>
   <meta name="description" content="Elektronische Winzergenossenschaftsverwaltung"/>
   <link rel="icon" href="/favicon.ico" sizes="16x16 20x20 24x24 30x30 32x32 36x36 40x40 48x48 60x60 64x64 72x72 80x80 96x96 128x128 256x256"/>
-  <link rel="stylesheet" href="/res/style.css"/>
+  <link rel="stylesheet" href="/res/style.css?v=2025-01-12"/>
   <link rel="alternate" href="/en/" hreflang="en"/>
   <meta name="viewport" content="width=device-width,initial-scale=1.0"/>
   <meta name="theme-color" content="#A040C0"/>
diff --git a/www/en/index.xhtml b/www/en/index.xhtml
index 265dd88..1e1e48f 100644
--- a/www/en/index.xhtml
+++ b/www/en/index.xhtml
@@ -5,7 +5,7 @@
   <title>Elwig - Electronic Management for Vintners' Cooperatives</title>
   <meta name="description" content="Electronic Management for Vintners' Cooperatives"/>
   <link rel="icon" href="/favicon.ico" sizes="16x16 20x20 24x24 30x30 32x32 36x36 40x40 48x48 60x60 64x64 72x72 80x80 96x96 128x128 256x256"/>
-  <link rel="stylesheet" href="/res/style.css"/>
+  <link rel="stylesheet" href="/res/style.css?v=2025-01-12"/>
   <link rel="alternate" href="/de/" hreflang="de"/>
   <meta name="viewport" content="width=device-width,initial-scale=1.0"/>
   <meta name="theme-color" content="#A040C0"/>