diff --git a/checkstyle.xml b/checkstyle.xml
index 17a86a8..7282751 100644
--- a/checkstyle.xml
+++ b/checkstyle.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
-    "-//Puppy Crawl//DTD Check Configuration 1.2//EN"
-    "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">
+    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
 
 <module name="Checker">
     <module name="SuppressionFilter">