diff --git a/src/checkstyle/import-control.xml b/src/checkstyle/import-control.xml
index 01666ca0..b153f28a 100644
--- a/src/checkstyle/import-control.xml
+++ b/src/checkstyle/import-control.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!DOCTYPE import-control PUBLIC "-//Puppy Crawl//DTD Import Control 1.1//EN"
-		"http://www.puppycrawl.com/dtds/import_control_1_1.dtd">
+<!DOCTYPE import-control PUBLIC "-//Checkstyle//DTD ImportControl Configuration 1.4//EN"
+		"https://checkstyle.org/dtds/import_control_1_4.dtd">
 <import-control pkg="io.spring.initializr">
 	<allow pkg=".*" regex="true"/>
 	<subpackage name="web">