diff --git a/persistence-modules/apache-bookkeeper/pom.xml b/persistence-modules/apache-bookkeeper/pom.xml
index 0beea7f1fc..32467b9997 100644
--- a/persistence-modules/apache-bookkeeper/pom.xml
+++ b/persistence-modules/apache-bookkeeper/pom.xml
@@ -11,9 +11,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/deltaspike/pom.xml b/persistence-modules/deltaspike/pom.xml
index 871bacd18b..955ad4abe8 100644
--- a/persistence-modules/deltaspike/pom.xml
+++ b/persistence-modules/deltaspike/pom.xml
@@ -188,13 +188,6 @@
             <scope>provided</scope>
         </dependency>
 
-        <!-- Needed for running tests (you may also use TestNG) -->
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-        </dependency>
-
         <!-- Others -->
         <dependency>
             <groupId>org.apache.commons</groupId>
diff --git a/persistence-modules/flyway-repair/pom.xml b/persistence-modules/flyway-repair/pom.xml
index 5a5c4103f6..82e5d705f9 100644
--- a/persistence-modules/flyway-repair/pom.xml
+++ b/persistence-modules/flyway-repair/pom.xml
@@ -75,6 +75,11 @@
 
     <properties>
         <flyway.configFiles>src/main/resources/application-${spring-boot.run.profiles}.properties</flyway.configFiles>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/flyway/pom.xml b/persistence-modules/flyway/pom.xml
index f2e393abbf..2379f996d7 100644
--- a/persistence-modules/flyway/pom.xml
+++ b/persistence-modules/flyway/pom.xml
@@ -65,6 +65,11 @@
     <properties>
         <flyway-core.version>5.2.3</flyway-core.version>
         <flyway-maven-plugin.version>5.0.2</flyway-maven-plugin.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/jpa-hibernate-cascade-type/pom.xml b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
index 1fc119592c..e8117290b0 100644
--- a/persistence-modules/jpa-hibernate-cascade-type/pom.xml
+++ b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
@@ -4,6 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jpa-hibernate-cascade-type</artifactId>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>persistence-modules</artifactId>
diff --git a/persistence-modules/pom.xml b/persistence-modules/pom.xml
index 4e46c9204b..def2deb941 100644
--- a/persistence-modules/pom.xml
+++ b/persistence-modules/pom.xml
@@ -92,5 +92,10 @@
     <properties>
         <!-- persistence -->
         <hibernate.version>5.2.17.Final</hibernate.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 </project>
diff --git a/persistence-modules/r2dbc/pom.xml b/persistence-modules/r2dbc/pom.xml
index 119d0547e3..7083eea64d 100644
--- a/persistence-modules/r2dbc/pom.xml
+++ b/persistence-modules/r2dbc/pom.xml
@@ -68,6 +68,11 @@
     <properties>
         <r2dbc-h2.version>0.8.1.RELEASE</r2dbc-h2.version>
         <h2.version>1.4.200</h2.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/redis/pom.xml b/persistence-modules/redis/pom.xml
index e4c5eb4002..9e00566767 100644
--- a/persistence-modules/redis/pom.xml
+++ b/persistence-modules/redis/pom.xml
@@ -61,6 +61,11 @@
         <redisson.version>3.13.1</redisson.version>
         <jedis.version>3.3.0</jedis.version>
         <epoll.version>4.1.50.Final</epoll.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-boot-mysql/pom.xml b/persistence-modules/spring-boot-mysql/pom.xml
index 9f6ec73522..9b8c6d0028 100644
--- a/persistence-modules/spring-boot-mysql/pom.xml
+++ b/persistence-modules/spring-boot-mysql/pom.xml
@@ -39,6 +39,11 @@
 
     <properties>
         <mysql-connector-java.version>8.0.12</mysql-connector-java.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-boot-persistence-2/pom.xml b/persistence-modules/spring-boot-persistence-2/pom.xml
index e90d61fda3..ca6ec93340 100644
--- a/persistence-modules/spring-boot-persistence-2/pom.xml
+++ b/persistence-modules/spring-boot-persistence-2/pom.xml
@@ -17,6 +17,13 @@
 
     <dependencyManagement>
         <dependencies>
+            <dependency>
+                <groupId>org.junit</groupId>
+                <artifactId>junit-bom</artifactId>
+                <version>${junit-jupiter.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
@@ -36,7 +43,6 @@
                 <artifactId>jdbi3-sqlobject</artifactId>
                 <version>${jdbi.version}</version>
             </dependency>
-
         </dependencies>
     </dependencyManagement>
 
diff --git a/persistence-modules/spring-boot-persistence-h2/pom.xml b/persistence-modules/spring-boot-persistence-h2/pom.xml
index 9e6c780931..23520a3fda 100644
--- a/persistence-modules/spring-boot-persistence-h2/pom.xml
+++ b/persistence-modules/spring-boot-persistence-h2/pom.xml
@@ -46,6 +46,11 @@
         <!-- The main class to start by executing java -jar -->
         <start-class>com.baeldung.h2db.demo.server.SpringBootApp</start-class>
         <db-util.version>1.0.4</db-util.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-boot-persistence-mongodb/pom.xml b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
index de52a4b2d6..69ef09356d 100644
--- a/persistence-modules/spring-boot-persistence-mongodb/pom.xml
+++ b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
@@ -36,4 +36,10 @@
         </dependency>
     </dependencies>
 
+    <properties>
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-boot-persistence/pom.xml b/persistence-modules/spring-boot-persistence/pom.xml
index 9e44a7b9c1..b034f6dad9 100644
--- a/persistence-modules/spring-boot-persistence/pom.xml
+++ b/persistence-modules/spring-boot-persistence/pom.xml
@@ -76,6 +76,11 @@
     <properties>
         <mockito.version>2.23.0</mockito.version>
         <validation-api.version>2.0.1.Final</validation-api.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-cassandra-reactive/pom.xml b/persistence-modules/spring-data-cassandra-reactive/pom.xml
index 16486bf380..42329e03f0 100644
--- a/persistence-modules/spring-data-cassandra-reactive/pom.xml
+++ b/persistence-modules/spring-data-cassandra-reactive/pom.xml
@@ -53,6 +53,11 @@
     <properties>
         <spring-boot.version>2.2.6.RELEASE</spring-boot.version>
         <cassandra-unit-spring.version>3.11.2.0</cassandra-unit-spring.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-cassandra/pom.xml b/persistence-modules/spring-data-cassandra/pom.xml
index b44324dc46..a56d067a05 100644
--- a/persistence-modules/spring-data-cassandra/pom.xml
+++ b/persistence-modules/spring-data-cassandra/pom.xml
@@ -104,6 +104,11 @@
         <cassandra-unit-spring.version>2.1.9.2</cassandra-unit-spring.version>
         <cassandra-unit-shaded.version>2.1.9.2</cassandra-unit-shaded.version>
         <hector-core.version>2.0-0</hector-core.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-cosmosdb/pom.xml b/persistence-modules/spring-data-cosmosdb/pom.xml
index 75cc830578..0f9e8ac72f 100644
--- a/persistence-modules/spring-data-cosmosdb/pom.xml
+++ b/persistence-modules/spring-data-cosmosdb/pom.xml
@@ -16,6 +16,11 @@
     <properties>
         <java.version>1.8</java.version>
         <cosmodb.version>2.3.0</cosmodb.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
     
     <dependencies>
diff --git a/persistence-modules/spring-data-dynamodb/pom.xml b/persistence-modules/spring-data-dynamodb/pom.xml
index 377e35b635..0f4b578088 100644
--- a/persistence-modules/spring-data-dynamodb/pom.xml
+++ b/persistence-modules/spring-data-dynamodb/pom.xml
@@ -182,6 +182,11 @@
         <dynamodblocal.version>1.11.86</dynamodblocal.version>
         <dynamodblocal.repository.url>https://s3-us-west-2.amazonaws.com/dynamodb-local/release</dynamodblocal.repository.url>
         <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-elasticsearch/pom.xml b/persistence-modules/spring-data-elasticsearch/pom.xml
index 6a983145ee..c94962d39d 100644
--- a/persistence-modules/spring-data-elasticsearch/pom.xml
+++ b/persistence-modules/spring-data-elasticsearch/pom.xml
@@ -69,5 +69,10 @@
         <fastjson.version>1.2.47</fastjson.version>
         <spatial4j.version>0.7</spatial4j.version>
         <jts.version>1.15.0</jts.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jdbc/pom.xml b/persistence-modules/spring-data-jdbc/pom.xml
index ff034104d7..eca8037e20 100644
--- a/persistence-modules/spring-data-jdbc/pom.xml
+++ b/persistence-modules/spring-data-jdbc/pom.xml
@@ -26,4 +26,11 @@
 			<scope>runtime</scope>
 		</dependency>
 	</dependencies>
+
+	<properties>
+		<!-- testing -->
+		<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+		<junit-jupiter.version>5.6.2</junit-jupiter.version>
+		<junit.version>4.13</junit.version>
+	</properties>
 </project>
diff --git a/persistence-modules/spring-data-jpa-annotations/pom.xml b/persistence-modules/spring-data-jpa-annotations/pom.xml
index 67b788c404..ea2fe34f3c 100644
--- a/persistence-modules/spring-data-jpa-annotations/pom.xml
+++ b/persistence-modules/spring-data-jpa-annotations/pom.xml
@@ -72,6 +72,11 @@
         <testcontainers.postgresql.version>1.10.6</testcontainers.postgresql.version>
         <postgresql.version>42.2.5</postgresql.version>
         <guava.version>21.0</guava.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-crud/pom.xml b/persistence-modules/spring-data-jpa-crud/pom.xml
index 1708d14fc2..44944298e0 100644
--- a/persistence-modules/spring-data-jpa-crud/pom.xml
+++ b/persistence-modules/spring-data-jpa-crud/pom.xml
@@ -66,6 +66,11 @@
         <datasource-proxy.version>1.4.1</datasource-proxy.version>
         <guava.version>21.0</guava.version>
         <testcontainers.version>1.12.2</testcontainers.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-jpa-enterprise/pom.xml b/persistence-modules/spring-data-jpa-enterprise/pom.xml
index 093059ad78..6d9fc41df6 100644
--- a/persistence-modules/spring-data-jpa-enterprise/pom.xml
+++ b/persistence-modules/spring-data-jpa-enterprise/pom.xml
@@ -102,6 +102,11 @@
         <mapstruct.version>1.3.1.Final</mapstruct.version>
         <guava.version>21.0</guava.version>
         <testcontainers.version>1.12.2</testcontainers.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-jpa-filtering/pom.xml b/persistence-modules/spring-data-jpa-filtering/pom.xml
index 2039ef1a37..7448a5a818 100644
--- a/persistence-modules/spring-data-jpa-filtering/pom.xml
+++ b/persistence-modules/spring-data-jpa-filtering/pom.xml
@@ -72,6 +72,11 @@
         <testcontainers.postgresql.version>1.10.6</testcontainers.postgresql.version>
         <postgresql.version>42.2.5</postgresql.version>
         <guava.version>21.0</guava.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-query-2/pom.xml b/persistence-modules/spring-data-jpa-query-2/pom.xml
index 22cd373c95..231640284e 100644
--- a/persistence-modules/spring-data-jpa-query-2/pom.xml
+++ b/persistence-modules/spring-data-jpa-query-2/pom.xml
@@ -30,4 +30,10 @@
         </dependency>
     </dependencies>
 
+    <properties>
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-query/pom.xml b/persistence-modules/spring-data-jpa-query/pom.xml
index 71498143c3..fe42d4b595 100644
--- a/persistence-modules/spring-data-jpa-query/pom.xml
+++ b/persistence-modules/spring-data-jpa-query/pom.xml
@@ -43,6 +43,11 @@
 
     <properties>
         <datasource-proxy.version>1.4.1</datasource-proxy.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-repo-2/pom.xml b/persistence-modules/spring-data-jpa-repo-2/pom.xml
index 855b441074..98ecdc6645 100644
--- a/persistence-modules/spring-data-jpa-repo-2/pom.xml
+++ b/persistence-modules/spring-data-jpa-repo-2/pom.xml
@@ -43,5 +43,10 @@
 
     <properties>
         <guava.version>29.0-jre</guava.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-repo/pom.xml b/persistence-modules/spring-data-jpa-repo/pom.xml
index 984bc1bdff..07514e9771 100644
--- a/persistence-modules/spring-data-jpa-repo/pom.xml
+++ b/persistence-modules/spring-data-jpa-repo/pom.xml
@@ -49,4 +49,10 @@
         </dependency>
     </dependencies>
 
+    <properties>
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-keyvalue/pom.xml b/persistence-modules/spring-data-keyvalue/pom.xml
index b28773c414..190d6c7445 100644
--- a/persistence-modules/spring-data-keyvalue/pom.xml
+++ b/persistence-modules/spring-data-keyvalue/pom.xml
@@ -28,4 +28,10 @@
         </dependency>
     </dependencies>
 
+    <properties>
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-mongodb/pom.xml b/persistence-modules/spring-data-mongodb/pom.xml
index 60e59f5186..a3a81fe450 100644
--- a/persistence-modules/spring-data-mongodb/pom.xml
+++ b/persistence-modules/spring-data-mongodb/pom.xml
@@ -107,6 +107,11 @@
         <mongodb-reactivestreams.version>4.1.0</mongodb-reactivestreams.version>
         <projectreactor.version>3.2.0.RELEASE</projectreactor.version>
         <mongodb-driver.version>4.0.5</mongodb-driver.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-redis/pom.xml b/persistence-modules/spring-data-redis/pom.xml
index d271df31c7..34674dc223 100644
--- a/persistence-modules/spring-data-redis/pom.xml
+++ b/persistence-modules/spring-data-redis/pom.xml
@@ -98,6 +98,11 @@
         <cglib.version>3.2.4</cglib.version>
         <nosqlunit.version>0.10.0</nosqlunit.version>
         <embedded-redis.version>0.6</embedded-redis.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-solr/pom.xml b/persistence-modules/spring-data-solr/pom.xml
index 5386c4f9e1..94a796c466 100644
--- a/persistence-modules/spring-data-solr/pom.xml
+++ b/persistence-modules/spring-data-solr/pom.xml
@@ -45,6 +45,11 @@
 
     <properties>
         <spring-data-solr.version>2.0.5.RELEASE</spring-data-solr.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-hibernate4/pom.xml b/persistence-modules/spring-hibernate4/pom.xml
index 5e931d5cff..3e5a6f913f 100644
--- a/persistence-modules/spring-hibernate4/pom.xml
+++ b/persistence-modules/spring-hibernate4/pom.xml
@@ -156,6 +156,11 @@
 
         <!-- util -->
         <guava.version>19.0</guava.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-jdbc/pom.xml b/persistence-modules/spring-jdbc/pom.xml
index 4ac5239318..77200cd66e 100644
--- a/persistence-modules/spring-jdbc/pom.xml
+++ b/persistence-modules/spring-jdbc/pom.xml
@@ -37,5 +37,10 @@
 
     <properties>
         <spring-data-jdbc.version>2.0.3.RELEASE</spring-data-jdbc.version>
+
+        <!-- testing -->
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-jupiter.version>5.6.2</junit-jupiter.version>
+        <junit.version>4.13</junit.version>
     </properties>
 </project>
\ No newline at end of file