diff --git a/index.html b/index.html
index f9cc4d3..de1a36b 100755
--- a/index.html
+++ b/index.html
@@ -87,7 +87,6 @@ <h3 class="section-heading text-uppercase">『N予備校
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2023年度</h2>
-          <h3 class="section-subheading text-muted">2023</h3>
         </div>
       </div>
       <div class="row text-center nhigh grand-prize mt-4">
@@ -114,7 +113,6 @@ <h3 class="service-heading">動くWebページコンテスト2023夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2022年度</h2>
-          <h3 class="section-subheading text-muted">2022</h3>
         </div>
       </div>
 
@@ -143,7 +141,6 @@ <h3 class="service-heading">動くWebページコンテスト2022夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2021年度</h2>
-          <h3 class="section-subheading text-muted">2021</h3>
         </div>
       </div>
 
@@ -172,7 +169,6 @@ <h3 class="service-heading">動くWebページコンテスト2021夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2020年度</h2>
-          <h3 class="section-subheading text-muted">2020</h3>
         </div>
       </div>
 
@@ -201,7 +197,6 @@ <h3 class="service-heading">動くWebページコンテスト2020夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2019年度</h2>
-          <h3 class="section-subheading text-muted">2019</h3>
         </div>
       </div>
 
@@ -230,7 +225,6 @@ <h3 class="service-heading">動くWebページコンテスト2019夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2018年度</h2>
-          <h3 class="section-subheading text-muted">2018</h3>
         </div>
       </div>
 
@@ -259,7 +253,6 @@ <h3 class="service-heading">動くWebページコンテスト2018夏</h3>
       <div class="row">
         <div class="col-lg-12 text-center">
           <h2 class="section-heading text-uppercase">2017年度</h2>
-          <h3 class="section-subheading text-muted">2017</h3>
         </div>
       </div>