diff --git a/pages/hcunews.js b/pages/hcunews.js
index bb265a8..8df31fb 100644
--- a/pages/hcunews.js
+++ b/pages/hcunews.js
@@ -19,9 +19,13 @@ export default function HcuNews() {
         <div>
             <h1>{t('hcunews')}</h1>
             {lang === 'ja' ? (
-            <ReactMarkdown plugins={[gfm]} children={ja} />
+                <ReactMarkdown plugins={[gfm]}>
+                    {ja}
+                </ReactMarkdown>
             ) : (
-            <ReactMarkdown plugins={[gfm]} children={en} />
+                <ReactMarkdown plugins={[gfm]}>
+                    {en}
+                </ReactMarkdown>
             )}
         </div>
         </Layout>
diff --git a/pages/minecraft.js b/pages/minecraft.js
index 690af83..71e0d7d 100644
--- a/pages/minecraft.js
+++ b/pages/minecraft.js
@@ -86,12 +86,15 @@ export default function About(props) {
               </div>
               
               {/* Load markdown contents */}
-              {lang === 'ja' ? (
-                <ReactMarkdown plugins={[gfm]} children={ja} />
-              ) : (
-                <ReactMarkdown plugins={[gfm]} children={en} />
-              )}
-
+                {lang === 'ja' ? (
+                  <ReactMarkdown plugins={[gfm]}>
+                      {ja}
+                  </ReactMarkdown>
+                ) : (
+                  <ReactMarkdown plugins={[gfm]}>
+                      {en}
+                  </ReactMarkdown>
+                )}
             </div>
             </Layout>
           </>
diff --git a/pages/mutual.js b/pages/mutual.js
index 3c1142b..c8a92df 100644
--- a/pages/mutual.js
+++ b/pages/mutual.js
@@ -30,9 +30,13 @@ export default function Tos(props) {
             <Layout title={t('common:mutual')}>
               <div>
                 {lang === 'ja' ? (
-                  <ReactMarkdown plugins={[gfm]} children={ja} />
+                  <ReactMarkdown plugins={[gfm]}>
+                      {ja}
+                  </ReactMarkdown>
                 ) : (
-                  <ReactMarkdown plugins={[gfm]} children={en} />
+                  <ReactMarkdown plugins={[gfm]}>
+                      {en}
+                  </ReactMarkdown>
                 )}
               </div>
             </Layout>
diff --git a/pages/tos.js b/pages/tos.js
index c1bfb45..ee685c4 100644
--- a/pages/tos.js
+++ b/pages/tos.js
@@ -14,11 +14,15 @@ export default function Tos(props) {
     return(
         <Layout title={t('tos')}>
         <div>
-        {lang === 'ja' ? (
-          <ReactMarkdown plugins={[gfm]} children={ja} />
-        ) : (
-          <ReactMarkdown plugins={[gfm]} children={en} />
-        )}
+          {lang === 'ja' ? (
+            <ReactMarkdown plugins={[gfm]}>
+                {ja}
+            </ReactMarkdown>
+          ) : (
+            <ReactMarkdown plugins={[gfm]}>
+                {en}
+            </ReactMarkdown>
+          )}
         </div>
         </Layout>
         )