diff --git a/src/plugins/memberListActivities/styles.css b/src/plugins/memberListActivities/styles.css
index ab653e911..c4b302cf2 100644
--- a/src/plugins/memberListActivities/styles.css
+++ b/src/plugins/memberListActivities/styles.css
@@ -41,7 +41,7 @@
 
 .vc-mla-activity-divider {
     width: 100%;
-    border-top: 1px dotted rgba(255, 255, 255, 20%);
+    border-top: 1px dotted rgb(255 255 255 / 20%);
     margin-top: 3px;
     margin-bottom: 3px;
 }