diff --git a/src/styles.css b/src/styles.css
index 56ebb1c..bdad04f 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -149,7 +149,7 @@
 .html-body {
   /* base font */
   font-size: 14px;
-  font-weight: 500;
+  font-weight: 400;
   line-height: 20px;
 
   word-break: normal;