diff --git a/ui/src/styles/chat/layout.css b/ui/src/styles/chat/layout.css
index 589b0b62d..cdd7407aa 100644
--- a/ui/src/styles/chat/layout.css
+++ b/ui/src/styles/chat/layout.css
@@ -247,7 +247,7 @@
   width: 100%;
   height: 40px;
   min-height: 40px;
-  max-height: 150px;
+  max-height: min(400px, 50vh);
   padding: 9px 12px;
   border-radius: 8px;
   overflow-y: auto;