diff --git a/libraries/pom.xml b/libraries/pom.xml
index 2ad4871e3f..3a51ff5be0 100644
--- a/libraries/pom.xml
+++ b/libraries/pom.xml
@@ -130,10 +130,10 @@
             <version>${serenity.version}</version>
             <scope>test</scope>
             <exclusions>
-            	<exclusion>
-            		<groupId>org.asciidoctor</groupId>
-					<artifactId>asciidoctorj</artifactId>
-            	</exclusion>
+                <exclusion>
+                    <groupId>org.asciidoctor</groupId>
+                    <artifactId>asciidoctorj</artifactId>
+                </exclusion>
             </exclusions>
         </dependency>
         <dependency>
@@ -577,7 +577,7 @@
             <classifier>test</classifier>
             <scope>test</scope>
         </dependency>
-		
+
         <dependency>
             <groupId>org.milyn</groupId>
             <artifactId>milyn-smooks-all</artifactId>
@@ -654,8 +654,8 @@
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>
-            <version>${snakeyaml.version}</version>            
-        </dependency>       
+            <version>${snakeyaml.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>com.numericalmethod</groupId>
@@ -678,11 +678,6 @@
     </dependencies>
 
     <repositories>
-        <!-- <repository>
-            <id>maven2-repository.dev.java.net</id>
-            <name>Java.net repository</name>
-            <url>http://download.java.net/maven/2</url>
-        </repository> -->
         <repository>
             <snapshots>
                 <enabled>false</enabled>
diff --git a/persistence-modules/java-cockroachdb/pom.xml b/persistence-modules/java-cockroachdb/pom.xml
index 2a92934a6e..2738ef85ff 100644
--- a/persistence-modules/java-cockroachdb/pom.xml
+++ b/persistence-modules/java-cockroachdb/pom.xml
@@ -5,7 +5,7 @@
     <groupId>com.baeldung</groupId>
     <artifactId>java-cockroachdb</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>java-cockroachdb</name>
+    <name>java-cockroachdb</name>
 
     <parent>
         <artifactId>parent-modules</artifactId>
@@ -22,15 +22,6 @@
         </dependency>
     </dependencies>
 
-    <repositories>
-        <repository>
-            <id>Central</id>
-            <name>Central</name>
-            <url>http://repo1.maven.org/maven2/</url>
-            <layout>default</layout>
-        </repository>
-    </repositories>
-
     <properties>
         <postgresql.version>42.1.4</postgresql.version>
     </properties>
diff --git a/persistence-modules/java-jdbi/pom.xml b/persistence-modules/java-jdbi/pom.xml
index 9281f4fd9d..dfb31b26e8 100644
--- a/persistence-modules/java-jdbi/pom.xml
+++ b/persistence-modules/java-jdbi/pom.xml
@@ -27,15 +27,6 @@
         </dependency>
     </dependencies>
 
-    <repositories>
-        <repository>
-            <id>Central</id>
-            <name>Central</name>
-            <url>http://repo1.maven.org/maven2/</url>
-            <layout>default</layout>
-        </repository>
-    </repositories>
-
     <properties>
         <jdbi3-core.version>3.1.0</jdbi3-core.version>
         <hsqldb.version>2.4.0</hsqldb.version>
diff --git a/spring-integration/pom.xml b/spring-integration/pom.xml
index 457645a144..8a5399ae0b 100644
--- a/spring-integration/pom.xml
+++ b/spring-integration/pom.xml
@@ -104,14 +104,6 @@
         </plugins>
     </build>
 
-    <repositories>
-        <repository>
-            <id>repo.springsource.org.milestone</id>
-            <name>Spring Framework Maven Milestone Repository</name>
-            <url>https://repo.springsource.org/milestone</url>
-        </repository>
-    </repositories>
-
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <spring.version>5.0.3.RELEASE</spring.version>