diff --git a/water.css b/water.css
index f9276bc..b6c4000 100644
--- a/water.css
+++ b/water.css
@@ -33,7 +33,7 @@ h1, h2, h3, h4, h5, h6 {
 }
 
 h1, h2, h3, h4, h5, h6, b, strong, th {
-  font-weight: 500;
+  font-weight: 600;
 }
 
 input:not([type='checkbox']), select {