diff --git a/styles/old/base.css b/styles/old/base.css
index d4ab82dc53788..1d5270e3ec851 100644
--- a/styles/old/base.css
+++ b/styles/old/base.css
@@ -19,7 +19,7 @@ h2,
 h3,
 h4,
 h5 {
-  font-weight: bold;
+  font-weight: 700;
 }
 
 h2 {