diff --git a/.changeset/funny-eagles-teach.md b/.changeset/funny-eagles-teach.md
new file mode 100644
index 000000000..3bb1c9364
--- /dev/null
+++ b/.changeset/funny-eagles-teach.md
@@ -0,0 +1,5 @@
+---
+"gitbook": patch
+---
+
+Support bold in headings
diff --git a/packages/gitbook/src/components/DocumentView/Text.tsx b/packages/gitbook/src/components/DocumentView/Text.tsx
index b245f3b44..6d7acb217 100644
--- a/packages/gitbook/src/components/DocumentView/Text.tsx
+++ b/packages/gitbook/src/components/DocumentView/Text.tsx
@@ -59,15 +59,15 @@ interface MarkedLeafProps<Mark extends DocumentTextMark> {
 }
 
 function Bold(props: MarkedLeafProps<DocumentMarkBold>) {
-    return <strong className={tcls('font-bold')}>{props.children}</strong>;
+    return <strong className="font-bold">{props.children}</strong>;
 }
 
 function Italic(props: MarkedLeafProps<DocumentMarkItalic>) {
-    return <i className={tcls('font-italic')}>{props.children}</i>;
+    return <i className="font-italic">{props.children}</i>;
 }
 
 function Strikethrough(props: MarkedLeafProps<DocumentMarkStrikethrough>) {
-    return <s className={tcls('line-through')}>{props.children}</s>;
+    return <s className="line-through">{props.children}</s>;
 }
 
 function Keyboard(props: MarkedLeafProps<DocumentMarkKeyboard>) {
diff --git a/packages/gitbook/src/fonts/default.ts b/packages/gitbook/src/fonts/default.ts
index 4e327c4b5..11cd4b259 100644
--- a/packages/gitbook/src/fonts/default.ts
+++ b/packages/gitbook/src/fonts/default.ts
@@ -121,7 +121,7 @@ const raleway = Raleway({
 });
 
 const roboto = Roboto({
-    weight: ['400', '500', '700'],
+    weight: ['400', '500', '600', '700'],
     variable: '--font-content',
     preload: false,
     display: 'swap',