diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index a1c1a21fca..692d065793 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -670,3 +670,7 @@
 @timeline-dot-border-width: 2px;
 @timeline-dot-color: @primary-color;
 @timeline-dot-bg: @component-background;
+
+// Typography
+// ---
+@typography-title-font-weight: 600;
diff --git a/components/typography/style/index.less b/components/typography/style/index.less
index 47c691b9b9..89c01139b9 100644
--- a/components/typography/style/index.less
+++ b/components/typography/style/index.less
@@ -12,7 +12,7 @@
 .typography-title(@fontSize; @lineHeight) {
   margin-bottom: 0.5em;
   color: @heading-color;
-  font-weight: 600;
+  font-weight: @typography-title-font-weight;
   font-size: @fontSize;
   line-height: @lineHeight;
 }