diff --git a/bom/pom.xml b/bom/pom.xml
index 5fcb6363..b9909eef 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -1,5 +1,5 @@
 <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.data.examples</groupId>
diff --git a/cassandra/example/pom.xml b/cassandra/example/pom.xml
index d3624fcc..0e1ed4e7 100644
--- a/cassandra/example/pom.xml
+++ b/cassandra/example/pom.xml
@@ -1,5 +1,5 @@
 <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/maven-v4_0_0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-data-cassandra-example</artifactId>
diff --git a/cassandra/java8/pom.xml b/cassandra/java8/pom.xml
index 6bbc36bf..189f8e66 100644
--- a/cassandra/java8/pom.xml
+++ b/cassandra/java8/pom.xml
@@ -1,5 +1,5 @@
 <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/maven-v4_0_0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
diff --git a/cassandra/pom.xml b/cassandra/pom.xml
index 60afd4a8..e6d46862 100644
--- a/cassandra/pom.xml
+++ b/cassandra/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-cassandra-examples</artifactId>
@@ -13,7 +13,7 @@
 
 	<name>Spring Data Cassandra - Examples</name>
 	<description>Sample projects for Spring Data Cassandra</description>
-	<url>http://projects.spring.io/spring-data-cassandra</url>
+	<url>https://projects.spring.io/spring-data-cassandra</url>
 	<inceptionYear>2014</inceptionYear>
 
 	<modules>
diff --git a/cassandra/reactive/pom.xml b/cassandra/reactive/pom.xml
index e3bcf226..f097ea85 100644
--- a/cassandra/reactive/pom.xml
+++ b/cassandra/reactive/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/cassandra/util/pom.xml b/cassandra/util/pom.xml
index 9d1c1785..470daab3 100644
--- a/cassandra/util/pom.xml
+++ b/cassandra/util/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/elasticsearch/example/pom.xml b/elasticsearch/example/pom.xml
index accbd48d..8220a181 100644
--- a/elasticsearch/example/pom.xml
+++ b/elasticsearch/example/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</groupId>
diff --git a/elasticsearch/pom.xml b/elasticsearch/pom.xml
index 616a1d9a..ac36b131 100644
--- a/elasticsearch/pom.xml
+++ b/elasticsearch/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-elasticsearch-examples</artifactId>
diff --git a/jpa/eclipselink/pom.xml b/jpa/eclipselink/pom.xml
index 50b79312..37568e73 100644
--- a/jpa/eclipselink/pom.xml
+++ b/jpa/eclipselink/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>
 
@@ -83,14 +83,14 @@
 			<repositories>
 				<repository>
 					<id>com.ethlo.eclipselink.tools</id>
-					<url>http://ethlo.com/maven</url>
+					<url>https://ethlo.com/maven</url>
 				</repository>
 			</repositories>
 
 			<pluginRepositories>
 				<pluginRepository>
 					<id>com.ethlo.eclipselink.tools</id>
-					<url>http://ethlo.com/maven</url>
+					<url>https://ethlo.com/maven</url>
 				</pluginRepository>
 			</pluginRepositories>
 
diff --git a/jpa/example/pom.xml b/jpa/example/pom.xml
index 00aaa9da..e15b0068 100644
--- a/jpa/example/pom.xml
+++ b/jpa/example/pom.xml
@@ -1,5 +1,5 @@
 <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/maven-v4_0_0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-data-jpa-example</artifactId>
diff --git a/jpa/interceptors/pom.xml b/jpa/interceptors/pom.xml
index 64e0acc1..953a6baf 100644
--- a/jpa/interceptors/pom.xml
+++ b/jpa/interceptors/pom.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
 	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 	<modelVersion>4.0.0</modelVersion>
 	
diff --git a/jpa/java8/pom.xml b/jpa/java8/pom.xml
index 83752d09..d4c8d72b 100644
--- a/jpa/java8/pom.xml
+++ b/jpa/java8/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/jpa/jpa21/pom.xml b/jpa/jpa21/pom.xml
index 050506d3..e9961ea2 100644
--- a/jpa/jpa21/pom.xml
+++ b/jpa/jpa21/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/jpa/multiple-datasources/pom.xml b/jpa/multiple-datasources/pom.xml
index 163bcda7..d9b31773 100644
--- a/jpa/multiple-datasources/pom.xml
+++ b/jpa/multiple-datasources/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/jpa/pom.xml b/jpa/pom.xml
index 3321be51..46e8cc74 100644
--- a/jpa/pom.xml
+++ b/jpa/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-jpa-examples</artifactId>
@@ -13,7 +13,7 @@
 
 	<name>Spring Data JPA - Examples</name>
 	<description>Sample projects for Spring Data JPA</description>
-	<url>http://projects.spring.io/spring-data-jpa</url>
+	<url>https://projects.spring.io/spring-data-jpa</url>
 	<inceptionYear>2011-2014</inceptionYear>
 
 	<modules>
diff --git a/jpa/query-by-example/pom.xml b/jpa/query-by-example/pom.xml
index 0a2ee143..e9144094 100644
--- a/jpa/query-by-example/pom.xml
+++ b/jpa/query-by-example/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/jpa/security/pom.xml b/jpa/security/pom.xml
index cfb98f91..746e3fed 100644
--- a/jpa/security/pom.xml
+++ b/jpa/security/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/jpa/showcase/pom.xml b/jpa/showcase/pom.xml
index 116db613..b6593ed8 100644
--- a/jpa/showcase/pom.xml
+++ b/jpa/showcase/pom.xml
@@ -1,5 +1,5 @@
 <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/maven-v4_0_0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<artifactId>spring-data-jpa-showcase</artifactId>
diff --git a/jpa/vavr/pom.xml b/jpa/vavr/pom.xml
index ca6686b7..4a179131 100644
--- a/jpa/vavr/pom.xml
+++ b/jpa/vavr/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/ldap/example/pom.xml b/ldap/example/pom.xml
index 22668267..4090f2c0 100644
--- a/ldap/example/pom.xml
+++ b/ldap/example/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-ldap-example</artifactId>
diff --git a/ldap/pom.xml b/ldap/pom.xml
index 1b95136f..618c537b 100644
--- a/ldap/pom.xml
+++ b/ldap/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-ldap-examples</artifactId>
@@ -14,7 +14,7 @@
 
 	<name>Spring Data LDAP - Examples</name>
 	<description>Sample projects for Spring Data LDAP</description>
-	<url>http://projects.spring.io/spring-data-ldap</url>
+	<url>https://projects.spring.io/spring-data-ldap</url>
 
 	<modules>
 		<module>example</module>
diff --git a/map/pom.xml b/map/pom.xml
index 6035174a..44defe51 100644
--- a/map/pom.xml
+++ b/map/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-map-repositories-example</artifactId>
diff --git a/mongodb/aggregation/pom.xml b/mongodb/aggregation/pom.xml
index 58980a3a..25c716a6 100644
--- a/mongodb/aggregation/pom.xml
+++ b/mongodb/aggregation/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-mongodb-aggregation</artifactId>
diff --git a/mongodb/example/pom.xml b/mongodb/example/pom.xml
index ebda56a2..181ca143 100644
--- a/mongodb/example/pom.xml
+++ b/mongodb/example/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-mongodb-example</artifactId>
diff --git a/mongodb/geo-json/pom.xml b/mongodb/geo-json/pom.xml
index ce64e543..17b694e6 100644
--- a/mongodb/geo-json/pom.xml
+++ b/mongodb/geo-json/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/mongodb/java8/pom.xml b/mongodb/java8/pom.xml
index 9a059360..7be15efb 100644
--- a/mongodb/java8/pom.xml
+++ b/mongodb/java8/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/mongodb/pom.xml b/mongodb/pom.xml
index 162a84d6..14b2fdfd 100644
--- a/mongodb/pom.xml
+++ b/mongodb/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-mongodb-examples</artifactId>
@@ -13,7 +13,7 @@
 
 	<name>Spring Data MongoDB - Examples</name>
 	<description>Sample projects for Spring Data MongoDB</description>
-	<url>http://projects.spring.io/spring-data-mongodb</url>
+	<url>https://projects.spring.io/spring-data-mongodb</url>
 	<inceptionYear>2011-2015</inceptionYear>
 
 	<modules>
diff --git a/mongodb/query-by-example/pom.xml b/mongodb/query-by-example/pom.xml
index a0652f4c..2349a466 100644
--- a/mongodb/query-by-example/pom.xml
+++ b/mongodb/query-by-example/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/mongodb/reactive/pom.xml b/mongodb/reactive/pom.xml
index 3c896f27..66ff5a9d 100644
--- a/mongodb/reactive/pom.xml
+++ b/mongodb/reactive/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/mongodb/security/pom.xml b/mongodb/security/pom.xml
index 34633d63..cf9a5cc5 100644
--- a/mongodb/security/pom.xml
+++ b/mongodb/security/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/mongodb/text-search/pom.xml b/mongodb/text-search/pom.xml
index 3e50d2c8..a4d75816 100644
--- a/mongodb/text-search/pom.xml
+++ b/mongodb/text-search/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-mongodb-text-search</artifactId>
diff --git a/multi-store/pom.xml b/multi-store/pom.xml
index 2c0be962..fe171847 100644
--- a/multi-store/pom.xml
+++ b/multi-store/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-multi-store-example</artifactId>
diff --git a/neo4j/example/pom.xml b/neo4j/example/pom.xml
index 6dc431cf..2eeb8068 100644
--- a/neo4j/example/pom.xml
+++ b/neo4j/example/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>
 
 	<artifactId>spring-data-neo4j-example</artifactId>
diff --git a/neo4j/pom.xml b/neo4j/pom.xml
index 476e01d4..1c6b8559 100644
--- a/neo4j/pom.xml
+++ b/neo4j/pom.xml
@@ -3,7 +3,7 @@
 
 <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>
 
 	<artifactId>spring-data-neo4j-examples</artifactId>
diff --git a/pom.xml b/pom.xml
index 6797cb4f..c9970ab1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,5 @@
 <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.data.examples</groupId>
diff --git a/redis/cluster/pom.xml b/redis/cluster/pom.xml
index 3acd1689..d7a0baa2 100644
--- a/redis/cluster/pom.xml
+++ b/redis/cluster/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-cluster-example</artifactId>
diff --git a/redis/example/pom.xml b/redis/example/pom.xml
index f6fd316f..bf0442f0 100644
--- a/redis/example/pom.xml
+++ b/redis/example/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-example</artifactId>
diff --git a/redis/pom.xml b/redis/pom.xml
index caabdfa1..a59300af 100644
--- a/redis/pom.xml
+++ b/redis/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-examples</artifactId>
diff --git a/redis/reactive/pom.xml b/redis/reactive/pom.xml
index 3684906e..3431943e 100644
--- a/redis/reactive/pom.xml
+++ b/redis/reactive/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-reactive</artifactId>
diff --git a/redis/repositories/pom.xml b/redis/repositories/pom.xml
index 4c929d4a..7fdd3385 100644
--- a/redis/repositories/pom.xml
+++ b/redis/repositories/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-repositories-example</artifactId>
diff --git a/redis/sentinel/pom.xml b/redis/sentinel/pom.xml
index 0107d333..5128dd22 100644
--- a/redis/sentinel/pom.xml
+++ b/redis/sentinel/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-redis-sentinel-example</artifactId>
diff --git a/redis/util/pom.xml b/redis/util/pom.xml
index 78f8b556..ff3105b7 100644
--- a/redis/util/pom.xml
+++ b/redis/util/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/rest/headers/pom.xml b/rest/headers/pom.xml
index fb42a018..8136886b 100644
--- a/rest/headers/pom.xml
+++ b/rest/headers/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-headers</artifactId>
diff --git a/rest/multi-store/pom.xml b/rest/multi-store/pom.xml
index 2c5deb0f..033b456e 100644
--- a/rest/multi-store/pom.xml
+++ b/rest/multi-store/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>
 
 	<artifactId>spring-data-rest-multi-store</artifactId>
diff --git a/rest/pom.xml b/rest/pom.xml
index 02696b80..e3247039 100644
--- a/rest/pom.xml
+++ b/rest/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-examples</artifactId>
diff --git a/rest/projections/pom.xml b/rest/projections/pom.xml
index cb4949fd..8d26a8af 100644
--- a/rest/projections/pom.xml
+++ b/rest/projections/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-projections</artifactId>
diff --git a/rest/security/pom.xml b/rest/security/pom.xml
index 68866e26..1fc87aed 100644
--- a/rest/security/pom.xml
+++ b/rest/security/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-security</artifactId>
diff --git a/rest/starbucks/pom.xml b/rest/starbucks/pom.xml
index 60d9573b..5c1cc13f 100644
--- a/rest/starbucks/pom.xml
+++ b/rest/starbucks/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-starbucks</artifactId>
diff --git a/rest/uri-customization/pom.xml b/rest/uri-customization/pom.xml
index 124c6d62..6172e290 100644
--- a/rest/uri-customization/pom.xml
+++ b/rest/uri-customization/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-rest-uri-customizations</artifactId>
diff --git a/solr/example/pom.xml b/solr/example/pom.xml
index be861407..355cff9f 100644
--- a/solr/example/pom.xml
+++ b/solr/example/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/solr/managed-schema/pom.xml b/solr/managed-schema/pom.xml
index 638e7081..ab74082e 100644
--- a/solr/managed-schema/pom.xml
+++ b/solr/managed-schema/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/solr/pom.xml b/solr/pom.xml
index eed17645..25b30621 100644
--- a/solr/pom.xml
+++ b/solr/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-solr-examples</artifactId>
@@ -13,7 +13,7 @@
 
 	<name>Spring Data Solr - Examples</name>
 	<description>Sample projects for Spring Data Solr</description>
-	<url>http://projects.spring.io/spring-data-solr</url>
+	<url>https://projects.spring.io/spring-data-solr</url>
 
 	<modules>
 		<module>util</module>
diff --git a/solr/util/pom.xml b/solr/util/pom.xml
index 018d4825..780c7fa2 100644
--- a/solr/util/pom.xml
+++ b/solr/util/pom.xml
@@ -1,5 +1,5 @@
 <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>
diff --git a/web/example/pom.xml b/web/example/pom.xml
index 79ba55f9..c93e9d9c 100644
--- a/web/example/pom.xml
+++ b/web/example/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-web-example</artifactId>
diff --git a/web/pom.xml b/web/pom.xml
index b34feaf2..8c432b1c 100644
--- a/web/pom.xml
+++ b/web/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-web-examples</artifactId>
diff --git a/web/projection/pom.xml b/web/projection/pom.xml
index 60dff247..2ac38b4f 100644
--- a/web/projection/pom.xml
+++ b/web/projection/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-web-projection</artifactId>
diff --git a/web/querydsl/pom.xml b/web/querydsl/pom.xml
index cce4ff3c..5a0538ea 100644
--- a/web/querydsl/pom.xml
+++ b/web/querydsl/pom.xml
@@ -1,5 +1,5 @@
 <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>
 
 	<artifactId>spring-data-web-querydsl</artifactId>