diff --git a/packages/ui/src/components/accordion.css b/packages/ui/src/components/accordion.css
index c8dfdfab..07a76f90 100644
--- a/packages/ui/src/components/accordion.css
+++ b/packages/ui/src/components/accordion.css
@@ -6,6 +6,7 @@
   align-self: stretch;
   border-radius: 8px;
   border: 1px solid var(--border-weak-base);
+  overflow: clip;
 
   [data-slot="accordion-item"] {
     width: 100%;
@@ -64,6 +65,9 @@
       [data-slot="accordion-trigger"] {
         border-bottom: none;
       }
+      &[data-expanded] {
+        border-bottom: none;
+      }
     }
 
     &[data-expanded] {