diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/ConfigurationLoader.java b/src/main/java/com/puppycrawl/tools/checkstyle/ConfigurationLoader.java
index 304283a5bf0..bdefc4e17f8 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/ConfigurationLoader.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/ConfigurationLoader.java
@@ -390,7 +390,7 @@ private static String replaceProperties(
      * reference from the second collection.
      *
      * <p>Code copied from
-     * <a href="http://cvs.apache.org/viewcvs/jakarta-ant/src/main/org/apache/tools/ant/ProjectHelper.java">
+     * <a href="https://github.com/apache/ant/blob/master/src/main/org/apache/tools/ant/ProjectHelper.java">
      * ant
      * </a>
      *