diff --git a/templates/partials/layout/head-styles.html b/templates/partials/layout/head-styles.html
index e9de501..391b34c 100644
--- a/templates/partials/layout/head-styles.html
+++ b/templates/partials/layout/head-styles.html
@@ -7,7 +7,7 @@
     <link rel="stylesheet" href="/static/css/main.css">
     {{end}}
     {{if .ChatEnabled}}
-    <link rel="stylesheet" href="/static/css/04-interactive/_chat.css">
+    <link rel="stylesheet" href="/static/css/04-interactive/_chat.css?v=20260408">
     {{end}}
     <!-- Print styles - loaded separately, only applied when printing -->
     <link rel="stylesheet" href="/static/css/print.css" media="print">