diff --git a/app/Libraries/HTMLUtils.php b/app/Libraries/HTMLUtils.php
index ad8ea6c8cb53..1b42f1bbe7b7 100644
--- a/app/Libraries/HTMLUtils.php
+++ b/app/Libraries/HTMLUtils.php
@@ -22,6 +22,7 @@ class HTMLUtils
         $config->set('CSS.AllowImportant', true);
         $config->set('CSS.AllowTricky', true);
         $config->set('CSS.Trusted', true);
+        $config->set('Cache.SerializerPath', base_path('storage/framework/cache'));
 
         // Create a new purifier instance
         $purifier = new HTMLPurifier($config);
@@ -42,6 +43,8 @@ class HTMLUtils
         $html = html_entity_decode($html);
 
         $config = HTMLPurifier_Config::createDefault();
+        $config->set('Cache.SerializerPath', base_path('storage/framework/cache'));
+
         $purifier = new HTMLPurifier($config);
 
         return $purifier->purify($html);