diff --git a/theme/index.php b/theme/index.php
index 0ffdcbe..57a8d8d 100644
--- a/theme/index.php
+++ b/theme/index.php
@@ -8,7 +8,7 @@
     <article class="article">
       <div class="article__date">
         <svg class="icon">
-          <use href="#icon-calendar"></use>
+          <use xlink:href="#icon-calendar"></use>
         </svg>
         <span class="article__date-text">
           <?php the_time(get_option('date_format')) ?>
diff --git a/theme/partials/pagination.php b/theme/partials/pagination.php
index dad11ab..68c7eed 100644
--- a/theme/partials/pagination.php
+++ b/theme/partials/pagination.php
@@ -33,7 +33,7 @@ function get_next_url($base_url, $page) {
 }
 function format_link($link) {
   if (strpos($link, 'page-numbers dots')) {
-    return '<span class="pagination__dots"><svg class="icon icon--extra-small"><use href="#icon-ellipsis"></use></svg></span>';
+    return '<span class="pagination__dots"><svg class="icon icon--extra-small"><use xlink:href="#icon-ellipsis"></use></svg></span>';
   }
   $link = str_replace('page-numbers current', 'pagination__current', $link);
   $link = str_replace('page-numbers', 'link', $link);
diff --git a/theme/single.php b/theme/single.php
index c7b57e6..3d45c71 100644
--- a/theme/single.php
+++ b/theme/single.php
@@ -8,7 +8,7 @@
     <article class="article">
       <div class="article__date">
         <svg class="icon">
-          <use href="#icon-calendar"></use>
+          <use xlink:href="#icon-calendar"></use>
         </svg>
         <span class="article__date-text">
           <?php the_time(get_option('date_format')) ?>
diff --git a/theme/tag.php b/theme/tag.php
index a67ce2c..34496c4 100644
--- a/theme/tag.php
+++ b/theme/tag.php
@@ -35,13 +35,13 @@
               <p class="excerpt__metadata">
                 <span class="excerpt__icon">
                   <svg class="icon icon--extra-small" aria-hidden="true">
-                    <use href="#icon-profile"></use>
+                    <use xlink:href="#icon-profile"></use>
                   </svg>
                 </span>
                 <span class="excerpt__text"><?php echo $username ?></span>
                 <span class="excerpt__icon">
                   <svg class="icon icon--extra-small" aria-hidden="true">
-                    <use href="#icon-calendar"></use>
+                    <use xlink:href="#icon-calendar"></use>
                   </svg>
                 </span>
                 <span class="excerpt__text"><?php echo $date ?></span>