diff --git a/sys-libs/libnvidia-container/metadata.xml b/sys-libs/libnvidia-container/metadata.xml
index 9185ea7d15..a1c24bc30e 100644
--- a/sys-libs/libnvidia-container/metadata.xml
+++ b/sys-libs/libnvidia-container/metadata.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
 		<email>vowstar@gmail.com</email>