diff --git a/spring-boot-project/spring-boot-starters/spring-boot-starter-data-jdbc/pom.xml b/spring-boot-project/spring-boot-starters/spring-boot-starter-data-jdbc/pom.xml
index 26a8e354d5..0f2f15b0e7 100644
--- a/spring-boot-project/spring-boot-starters/spring-boot-starter-data-jdbc/pom.xml
+++ b/spring-boot-project/spring-boot-starters/spring-boot-starter-data-jdbc/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.boot</groupId>
diff --git a/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-client/pom.xml b/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-client/pom.xml
index 9a411c50b1..32cd3b30fd 100644
--- a/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-client/pom.xml
+++ b/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.boot</groupId>
diff --git a/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-resource-server/pom.xml b/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-resource-server/pom.xml
index b250848f3c..c2c552237b 100644
--- a/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-resource-server/pom.xml
+++ b/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-resource-server/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.boot</groupId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main-attach-disabled/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main-attach-disabled/pom.xml
index 2156ea2070..6ab00a17d9 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main-attach-disabled/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main-attach-disabled/pom.xml
@@ -1,6 +1,6 @@
 <?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>org.springframework.boot.maven.it</groupId>
 	<artifactId>jar-classifier-main-attach-disabled</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main/pom.xml
index 6dd361c02b..906d95bbc7 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-main/pom.xml
@@ -1,6 +1,6 @@
 <?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>org.springframework.boot.maven.it</groupId>
 	<artifactId>jar-classifier-main</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source-attach-disabled/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source-attach-disabled/pom.xml
index f52abcf1e1..e03e44bdc0 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source-attach-disabled/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source-attach-disabled/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>org.springframework.boot.maven.it</groupId>
 	<artifactId>jar-classifier-source-attach-disabled</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source/pom.xml
index ad8143b793..0ec6aa2945 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-classifier-source/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>org.springframework.boot.maven.it</groupId>
 	<artifactId>jar-classifier-source</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-with-kotlin-module/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-with-kotlin-module/pom.xml
index 1ce66c36bf..53ffd855c8 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-with-kotlin-module/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/jar-with-kotlin-module/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>org.springframework.boot.maven.it</groupId>
 	<artifactId>jar-with-kotlin-module</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-envargs/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-envargs/pom.xml
index b14692f606..5d40d970c3 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-envargs/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-envargs/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 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>org.springframework.boot.maven.it</groupId>
 	<artifactId>run-envargs</artifactId>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-jvm-system-props/pom.xml b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-jvm-system-props/pom.xml
index 92f46e8ea6..4828ceec96 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-jvm-system-props/pom.xml
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/it/run-jvm-system-props/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>org.springframework.boot.maven.it</groupId>
 	<artifactId>run-jvmargs</artifactId>
diff --git a/spring-boot-samples/spring-boot-sample-data-jdbc/pom.xml b/spring-boot-samples/spring-boot-sample-data-jdbc/pom.xml
index d1074c312a..12eb7a8109 100755
--- a/spring-boot-samples/spring-boot-sample-data-jdbc/pom.xml
+++ b/spring-boot-samples/spring-boot-sample-data-jdbc/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>
 		<!-- Your own application should inherit from spring-boot-starter-parent -->
diff --git a/spring-boot-samples/spring-boot-sample-oauth2-resource-server/pom.xml b/spring-boot-samples/spring-boot-sample-oauth2-resource-server/pom.xml
index b644fb9352..4a21741555 100644
--- a/spring-boot-samples/spring-boot-sample-oauth2-resource-server/pom.xml
+++ b/spring-boot-samples/spring-boot-sample-oauth2-resource-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>
 		<!-- Your own application should inherit from spring-boot-starter-parent -->
diff --git a/spring-boot-samples/spring-boot-sample-reactive-oauth2-client/pom.xml b/spring-boot-samples/spring-boot-sample-reactive-oauth2-client/pom.xml
index 72fce29512..b4fc0a173c 100644
--- a/spring-boot-samples/spring-boot-sample-reactive-oauth2-client/pom.xml
+++ b/spring-boot-samples/spring-boot-sample-reactive-oauth2-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>
 		<!-- Your own application should inherit from spring-boot-starter-parent -->
diff --git a/spring-boot-samples/spring-boot-sample-reactive-oauth2-resource-server/pom.xml b/spring-boot-samples/spring-boot-sample-reactive-oauth2-resource-server/pom.xml
index b752feae61..81387943f2 100644
--- a/spring-boot-samples/spring-boot-sample-reactive-oauth2-resource-server/pom.xml
+++ b/spring-boot-samples/spring-boot-sample-reactive-oauth2-resource-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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>
 		<!-- Your own application should inherit from spring-boot-starter-parent -->
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-hibernate52-tests/pom.xml b/spring-boot-tests/spring-boot-integration-tests/spring-boot-hibernate52-tests/pom.xml
index 146815bc47..20f5841cca 100755
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-hibernate52-tests/pom.xml
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-hibernate52-tests/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.boot</groupId>