diff --git a/core/modules/system/css/components/progress.module.css b/core/modules/system/css/components/progress.module.css
index 80042afb821d4c6b533c2b5422a6c347131f3f55..574c6933b47dd5b0852eb8bc9051ef6931924c1d 100644
--- a/core/modules/system/css/components/progress.module.css
+++ b/core/modules/system/css/components/progress.module.css
@@ -18,7 +18,7 @@
 }
 .progress__bar {
   background-color: #000;
-  height: 1.5em;
+  height: 16px;
   width: 3%;
   min-width: 3%;
   max-width: 100%;