diff --git a/src/components/Thread.vue b/src/components/Thread.vue
index d296191849..21fb539baf 100644
--- a/src/components/Thread.vue
+++ b/src/components/Thread.vue
@@ -717,12 +717,16 @@ export default {
 	overflow: hidden;
 	display: flex;
 	align-items: stretch;
+}
 
-	:deep(.v-popper--theme-dropdown.v-popper__popper .v-popper__inner) {
-		height: 300px;
-		width: 250px;
-		overflow: auto;
-	}
+.thread-participants-overflow {
+	display: flex;
+	flex-direction: column;
+	align-items: flex-start;
+	gap: var(--default-grid-baseline);
+	max-height: min(50vh, 400px);
+	max-width: min(80vw, 320px);
+	overflow-y: auto;
 }
 
 .avatar-more {