diff --git a/config/checkstyle/checkStyle.xml b/config/checkstyle/checkStyle.xml
index 9d09ca11bee..4b2646533cb 100644
--- a/config/checkstyle/checkStyle.xml
+++ b/config/checkstyle/checkStyle.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
         "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-        "https://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <!--
     Checkstyle configuration that checks the Google coding conventions from Google Java Style
diff --git a/config/checkstyle/checkStyleAll.xml b/config/checkstyle/checkStyleAll.xml
index 7278039eab2..1a5137e83d3 100644
--- a/config/checkstyle/checkStyleAll.xml
+++ b/config/checkstyle/checkStyleAll.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
         "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-        "https://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <!--
     Checkstyle configuration that checks the Google coding conventions from Google Java Style
diff --git a/framework/config/checkstyle/checkStyle.xml b/framework/config/checkstyle/checkStyle.xml
index 049ca53c78a..db763c8bc6c 100644
--- a/framework/config/checkstyle/checkStyle.xml
+++ b/framework/config/checkstyle/checkStyle.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
   "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-  "https://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">
+  "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <!--
     Checkstyle configuration that checks the Google coding conventions from Google Java Style
diff --git a/framework/config/checkstyle/checkStyleAll.xml b/framework/config/checkstyle/checkStyleAll.xml
index c48d4c0c873..f3686cf7094 100644
--- a/framework/config/checkstyle/checkStyleAll.xml
+++ b/framework/config/checkstyle/checkStyleAll.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
   "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-  "https://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">
+  "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <!--
     Checkstyle configuration that checks the Google coding conventions from Google Java Style