diff --git a/vendors/fontastic/styles.css b/vendors/fontastic/styles.css
index ce36ecd50..76d2d1eb0 100644
--- a/vendors/fontastic/styles.css
+++ b/vendors/fontastic/styles.css
@@ -5,7 +5,7 @@
   src: url("fonts/snappymail.woff2") format("woff2"), url("fonts/snappymail.woff") format("woff");
   font-weight: normal;
   font-style: normal;
-
+  font-display: swap;
 }
 
 [class^="icon-"]::before,