diff --git a/pom.xml b/pom.xml
index a5df1e39..c0abd778 100755
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
diff --git a/spring-cloud-starter-task/pom.xml b/spring-cloud-starter-task/pom.xml
index f7d29288..bc28b449 100644
--- a/spring-cloud-starter-task/pom.xml
+++ b/spring-cloud-starter-task/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-task-batch/pom.xml b/spring-cloud-task-batch/pom.xml
index b8c80ca2..b53906ca 100644
--- a/spring-cloud-task-batch/pom.xml
+++ b/spring-cloud-task-batch/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-task-core/pom.xml b/spring-cloud-task-core/pom.xml
index 803e8629..00c966fd 100755
--- a/spring-cloud-task-core/pom.xml
+++ b/spring-cloud-task-core/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-task-dependencies/pom.xml b/spring-cloud-task-dependencies/pom.xml
index 543ec9e4..7d6dc061 100644
--- a/spring-cloud-task-dependencies/pom.xml
+++ b/spring-cloud-task-dependencies/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-task-dependencies</artifactId>
 	<version>2.1.0.BUILD-SNAPSHOT</version>
diff --git a/spring-cloud-task-docs/pom.xml b/spring-cloud-task-docs/pom.xml
index 3dbd17bf..34cc8fb1 100644
--- a/spring-cloud-task-docs/pom.xml
+++ b/spring-cloud-task-docs/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl-config.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl-config.xml
index 1dce4071..5aac4493 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl-config.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl-config.xml
@@ -19,5 +19,5 @@
 	<highlighter id="properties" file="./xslthl/properties-hl.xml"/>
 	<highlighter id="json" file="./xslthl/json-hl.xml"/>
 	<highlighter id="yaml" file="./xslthl/yaml-hl.xml"/>
-	<namespace prefix="xslthl" uri="http://xslthl.sf.net"/>
+	<namespace prefix="xslthl" uri="http://xslthl.sourceforge.net/"/>
 </xslthl-config>
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
index 518fdb86..b98d756e 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for SH
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2010 Mathieu Malaterre
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/c-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/c-hl.xml
index 0c994db7..7943634f 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/c-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/c-hl.xml
@@ -3,7 +3,7 @@
 Syntax highlighting definition for C
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
index a9f7d0de..b0789e9d 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for C++
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
index e21a1258..59ce58e7 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for C#
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/css-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/css-hl.xml
index 6c24623f..d7adc111 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/css-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/css-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for CSS files
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2016-2019 Martin Hujer, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
@@ -26,7 +26,7 @@ freely, subject to the following restrictions:
 Martin Hujer <mhujer at users.sourceforge.net>
 Michiel Hendriks <elmuerte at users.sourceforge.net>
 
-Reference: http://www.w3.org/TR/CSS21/propidx.html
+Reference: https://www.w3.org/TR/CSS21/propidx.html
 
 -->
 <highlighters>
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/html-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/html-hl.xml
index fd48f118..82d04d3f 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/html-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/html-hl.xml
@@ -7,7 +7,7 @@
   myxml-hl.xml - konfigurace zvyraznovace XML, ktera zvlast zvyrazni
                  HTML elementy a XSL elementy
 
-  This file has been customized for the Asciidoctor project (http://asciidoctor.org).
+  This file has been customized for the Asciidoctor project (https://asciidoctor.org).
 -->
 <highlighters>
 	<highlighter type="xml">
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ini-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
index 34c10363..6bd60b3e 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for ini files
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/java-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/java-hl.xml
index 96ef3da7..d39f7dad 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/java-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/java-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Java
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
index f74807f3..85710a0f 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for JavaScript
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/perl-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
index adf7b094..65188210 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Perl
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/php-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/php-hl.xml
index 1060ae4d..72a9bd40 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/php-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/php-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for PHP
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/properties-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
index 775f2f13..8205aac3 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Java
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/python-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/python-hl.xml
index fd6db57b..fa1aeb6a 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/python-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/python-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Python
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
index 5bf3473d..bcef913b 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Ruby
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
index bb561c64..85dcd031 100644
--- a/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
+++ b/spring-cloud-task-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for SQL:1999
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2012 Michiel Hendriks, Martin Hujer, k42b3
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-task-integration-tests/pom.xml b/spring-cloud-task-integration-tests/pom.xml
index e6b9fdf6..8c1e6bf6 100644
--- a/spring-cloud-task-integration-tests/pom.xml
+++ b/spring-cloud-task-integration-tests/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<parent>
 		<artifactId>spring-cloud-task-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
diff --git a/spring-cloud-task-samples/batch-events/pom.xml b/spring-cloud-task-samples/batch-events/pom.xml
index c79a9842..4f495d0f 100644
--- a/spring-cloud-task-samples/batch-events/pom.xml
+++ b/spring-cloud-task-samples/batch-events/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/batch-job/pom.xml b/spring-cloud-task-samples/batch-job/pom.xml
index f0cdb19e..b9fa2fe5 100644
--- a/spring-cloud-task-samples/batch-job/pom.xml
+++ b/spring-cloud-task-samples/batch-job/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/jpa-sample/pom.xml b/spring-cloud-task-samples/jpa-sample/pom.xml
index 66d26ff0..2b785d29 100644
--- a/spring-cloud-task-samples/jpa-sample/pom.xml
+++ b/spring-cloud-task-samples/jpa-sample/pom.xml
@@ -16,7 +16,7 @@
   -->
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/multiple-datasources/pom.xml b/spring-cloud-task-samples/multiple-datasources/pom.xml
index d509e222..1fb929aa 100644
--- a/spring-cloud-task-samples/multiple-datasources/pom.xml
+++ b/spring-cloud-task-samples/multiple-datasources/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/partitioned-batch-job/pom.xml b/spring-cloud-task-samples/partitioned-batch-job/pom.xml
index 73224b80..c147d686 100644
--- a/spring-cloud-task-samples/partitioned-batch-job/pom.xml
+++ b/spring-cloud-task-samples/partitioned-batch-job/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/pom.xml b/spring-cloud-task-samples/pom.xml
index 1d2da6d2..01546c87 100644
--- a/spring-cloud-task-samples/pom.xml
+++ b/spring-cloud-task-samples/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-task-samples/task-events/pom.xml b/spring-cloud-task-samples/task-events/pom.xml
index 6fab808e..ab2b97e6 100644
--- a/spring-cloud-task-samples/task-events/pom.xml
+++ b/spring-cloud-task-samples/task-events/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/taskprocessor/pom.xml b/spring-cloud-task-samples/taskprocessor/pom.xml
index 9ef55237..2f3cbc19 100644
--- a/spring-cloud-task-samples/taskprocessor/pom.xml
+++ b/spring-cloud-task-samples/taskprocessor/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/tasksink/pom.xml b/spring-cloud-task-samples/tasksink/pom.xml
index 6ca15395..9d9e16e1 100644
--- a/spring-cloud-task-samples/tasksink/pom.xml
+++ b/spring-cloud-task-samples/tasksink/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.cloud</groupId>
diff --git a/spring-cloud-task-samples/timestamp/pom.xml b/spring-cloud-task-samples/timestamp/pom.xml
index fc8fe2c5..a4eb1fe2 100644
--- a/spring-cloud-task-samples/timestamp/pom.xml
+++ b/spring-cloud-task-samples/timestamp/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-task-stream/pom.xml b/spring-cloud-task-stream/pom.xml
index 10d7c8ff..95822144 100644
--- a/spring-cloud-task-stream/pom.xml
+++ b/spring-cloud-task-stream/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xmlns="http://maven.apache.org/POM/4.0.0"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-cloud-task-stream</artifactId>