diff --git a/README.md b/README.md
index 654cff2..09b16c3 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 [![packaging: developmental](https://semanticcms.com/ao-badges/packaging-developmental.svg)](https://aoindustries.com/life-cycle#packaging-developmental)  
 [![java: >= 11](https://semanticcms.com/ao-badges/java-11.svg)](https://docs.oracle.com/en/java/javase/11/)
 [![java ee: >= 7](https://semanticcms.com/ao-badges/javaee-7.svg)](https://docs.oracle.com/javaee/7/)
-[![semantic versioning: 2.0.0](https://semanticcms.com/ao-badges/semver-2.0.0.svg)](http://semver.org/spec/v2.0.0.html)
+[![semantic versioning: 2.0.0](https://semanticcms.com/ao-badges/semver-2.0.0.svg)](https://semver.org/spec/v2.0.0.html)
 [![license: LGPL v3](https://semanticcms.com/ao-badges/license-lgpl-3.0.svg)](https://www.gnu.org/licenses/lgpl-3.0)
 
 [![Build](https://github.com/ao-apps/semanticcms-core-sitemap/workflows/Build/badge.svg?branch=master)](https://github.com/ao-apps/semanticcms-core-sitemap/actions?query=workflow%3ABuild)