diff --git a/fixtures/ruleset_default_file/ruleset.xml b/fixtures/ruleset_default_file/ruleset.xml
index 2d8b0a1..e953fbf 100644
--- a/fixtures/ruleset_default_file/ruleset.xml
+++ b/fixtures/ruleset_default_file/ruleset.xml
@@ -3,7 +3,7 @@
 <ruleset name="Basic"
   xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
+  xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">
   <description>The Basic ruleset contains a collection of good practices which should be followed.</description>
 
   <rule name="JumbledIncrementer" language="java">
diff --git a/fixtures/specified_file/rules.xml b/fixtures/specified_file/rules.xml
index 006ec43..f7a216f 100644
--- a/fixtures/specified_file/rules.xml
+++ b/fixtures/specified_file/rules.xml
@@ -3,7 +3,7 @@
 <ruleset name="Basic"
     xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
+    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">
   <description>
 The Basic ruleset contains a collection of good practices which should be followed.
   </description>
diff --git a/java-basic-default-ruleset.xml b/java-basic-default-ruleset.xml
index 006ec43..f7a216f 100644
--- a/java-basic-default-ruleset.xml
+++ b/java-basic-default-ruleset.xml
@@ -3,7 +3,7 @@
 <ruleset name="Basic"
     xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
+    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">
   <description>
 The Basic ruleset contains a collection of good practices which should be followed.
   </description>