diff --git a/src/components/PageHeader.astro b/src/components/PageHeader.astro
index f1e14ce..7fe8081 100644
--- a/src/components/PageHeader.astro
+++ b/src/components/PageHeader.astro
@@ -31,7 +31,7 @@ const Title = isHome ? 'p' : 'h1';
   </Nav>
 
   <Title
-    class="text-2xl font-bold leading-tight kerning-all [text-wrap:pretty] [word-break:auto-phrase]"
+    class="text-2xl font-bold leading-tight kerning-all [hanging-punctuation:none] [text-wrap:pretty] [word-break:auto-phrase]"
     set:html={title}
   />
 
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 7936f3c..137c616 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -129,7 +129,11 @@ const blogEntries = (await getCollection('blog')).toSorted(
 
   <main>
     <section class="wrapper">
-      <h2 class="mb-12 text-lg font-bold leading-tight text-dynamic-muted">主な投稿</h2>
+      <h2
+        class="mb-12 text-lg font-bold leading-tight text-dynamic-muted [hanging-punctuation:none]"
+      >
+        主な投稿
+      </h2>
 
       <DetailsList items={primaryItems} />
     </section>
@@ -137,7 +141,11 @@ const blogEntries = (await getCollection('blog')).toSorted(
     <div class="my-16 border-t"></div>
 
     <section class="wrapper">
-      <h2 class="mb-12 text-lg font-bold leading-tight text-dynamic-muted">プロジェクト</h2>
+      <h2
+        class="mb-12 text-lg font-bold leading-tight text-dynamic-muted [hanging-punctuation:none]"
+      >
+        プロジェクト
+      </h2>
 
       <DetailsList items={projectItems} />
     </section>
@@ -145,7 +153,11 @@ const blogEntries = (await getCollection('blog')).toSorted(
     <div class="my-16 border-t"></div>
 
     <section class="wrapper">
-      <h2 class="mb-12 text-lg font-bold leading-tight text-dynamic-muted">最近のブログ</h2>
+      <h2
+        class="mb-12 text-lg font-bold leading-tight text-dynamic-muted [hanging-punctuation:none]"
+      >
+        最近のブログ
+      </h2>
 
       <DetailsList
         items={blogEntries.slice(0, 3).map((entry) => ({
diff --git a/src/styles/components/prose.css b/src/styles/components/prose.css
index 53d67f9..9220b7a 100644
--- a/src/styles/components/prose.css
+++ b/src/styles/components/prose.css
@@ -20,15 +20,18 @@
   }
 
   h2 {
+    hanging-punctuation: none;
     font-weight: bold;
     font-size: theme(fontSize.2xl);
     line-height: theme(lineHeight.tight);
     font-kerning: normal;
     font-feature-settings: 'palt';
     word-break: auto-phrase;
+    text-wrap: pretty;
   }
 
   h3 {
+    hanging-punctuation: none;
     font-weight: bold;
     font-size: theme(fontSize.lg);
     line-height: theme(lineHeight.tight);