diff --git a/layout/_partial/head.ejs b/layout/_partial/head.ejs
index c09290525a25f78c7a0bcfbcb72c58a883355909..d63724dc465c1409b5ff6757fc7d028d9bd8a14f 100644
--- a/layout/_partial/head.ejs
+++ b/layout/_partial/head.ejs
@@ -37,4 +37,5 @@ if (is_archive()){
 />
 <%- js_auto_version('js/core') %>
 <%- partial('_partial/analytics') %>
+<script src="https://cdn.jsdelivr.net/npm/lazysizes@5.3.1/lazysizes.min.js" async></script>
 <%- theme.head %> 
\ No newline at end of file