diff --git a/css/knacss-unminified.css b/css/knacss-unminified.css
index cf203e8..5dd0fde 100644
--- a/css/knacss-unminified.css
+++ b/css/knacss-unminified.css
@@ -130,7 +130,7 @@ dfn {
 
 b,
 strong {
-  font-weight: bolder;
+  font-weight: bold;
 }
 
 small {