diff --git a/docs/types.md b/docs/types.md
index 62e6cb7..e29292e 100644
--- a/docs/types.md
+++ b/docs/types.md
@@ -2,7 +2,7 @@
 
 You may also be interested in reading the [schema in GraphQL syntax](schema.md).
 
-<details><summary>**Table of Contents**</summary><p><ul>
+<details><summary><strong>Table of Contents</strong></summary><p><ul>
   <li>[Query](#query)</li>
   <li>[Objects](#objects)<ul>
     <li>[Alias](#alias)</li>
diff --git a/scripts/render-types.js b/scripts/render-types.js
index 1e1fbb5..9c8cbf2 100644
--- a/scripts/render-types.js
+++ b/scripts/render-types.js
@@ -93,7 +93,7 @@ console.log('# Schema Types\n')
 
 console.log('You may also be interested in reading the [schema in GraphQL syntax](schema.md).\n')
 
-console.log('<details><summary>**Table of Contents**</summary><p><ul>')
+console.log('<details><summary><strong>Table of Contents</strong></summary><p><ul>')
 console.log('  <li>[Query](#query)</li>')
 console.log('  <li>[Objects](#objects)<ul>')
 objects.forEach(type => {