diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2a83074..e5df1b3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -32,7 +32,7 @@ jobs:
           command: |
             find ./ -type f -name "log4j2.xml" -print0 | xargs -0 sed -i -e 's/\/data\/logs/\/home\/circleci\/logs/g'
             find ./ -type f -name "*.java" -print0 | xargs -0 sed -i -e 's/\/data\/logs/\/home\/circleci\/logs/g'
-            mvn clean verify sonar:sonar -Dsonar.projectKey=project-sunbird_knowledge-platform-db-extensions -Dsonar.organization=project-sunbird -Dsonar.host.url=https://sonarcloud.io -Dsonar.surefire.reportsPath=/home/circleci/project/transaction-event-handler/target/surefire-reports
+            mvn clean verify sonar:sonar -Dsonar.projectKey=project-sunbird_knowledge-platform-db-extensions -Dsonar.organization=project-sunbird -Dsonar.host.url=https://sonarcloud.io -Dsonar.surefire.reportsPath=/home/circleci/project/transaction-event-handler/target/surefire-reports -Dsonar.coverage.jacoco.xmlReportPaths=/home/circleci/project/transaction-event-handler/target/site/jacoco/jacoco.xml
       - run:
           name: Save test results
           command: |
diff --git a/neo4j-extensions/custom-procedures/pom.xml b/neo4j-extensions/custom-procedures/pom.xml
index a3cf013..c5c58d8 100644
--- a/neo4j-extensions/custom-procedures/pom.xml
+++ b/neo4j-extensions/custom-procedures/pom.xml
@@ -23,12 +23,12 @@
 	<build>
 		<plugins>
             <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.1</version>
-                <configuration>
-                    <release>11</release>
-                </configuration>
+                <version>2.3.2</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
             </plugin>
 			<plugin>
 	            <groupId>org.apache.maven.plugins</groupId>
@@ -60,10 +60,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-                <configuration>
-                    <argLine>--illegal-access=permit</argLine>
-                </configuration>
+                <version>2.20</version>
             </plugin>
             <plugin>
                 <groupId>org.jacoco</groupId>
diff --git a/neo4j-extensions/learning-graph-extension/pom.xml b/neo4j-extensions/learning-graph-extension/pom.xml
index b1c5375..6c45e2c 100644
--- a/neo4j-extensions/learning-graph-extension/pom.xml
+++ b/neo4j-extensions/learning-graph-extension/pom.xml
@@ -19,12 +19,12 @@
 	<build>
 		<plugins>
             <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.1</version>
-                <configuration>
-                    <release>11</release>
-                </configuration>
+                <version>2.3.2</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
             </plugin>
 			<plugin>
 	            <groupId>org.apache.maven.plugins</groupId>
diff --git a/neo4j-extensions/pom.xml b/neo4j-extensions/pom.xml
index 79af4bf..f280b24 100644
--- a/neo4j-extensions/pom.xml
+++ b/neo4j-extensions/pom.xml
@@ -24,7 +24,7 @@
 			<plugins>
 				<plugin>
 					<artifactId>maven-assembly-plugin</artifactId>
-                    <version>3.3.0</version>
+                    <version>2.3</version>
 					<configuration>
 						<descriptors>
 							<descriptor>src/assembly/bin.xml</descriptor>
@@ -34,13 +34,42 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.8.1</version>
-                    <configuration>
-                        <release>11</release>
-                    </configuration>
+                    <version>2.3.2</version>
+					<configuration>
+						<source>1.8</source>
+						<target>1.8</target>
+					</configuration>
                 </plugin>
 			</plugins>
 		</pluginManagement>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.20</version>
+			</plugin>
+
+			<plugin>
+				<groupId>org.jacoco</groupId>
+				<artifactId>jacoco-maven-plugin</artifactId>
+				<version>0.7.9</version>
+				<executions>
+					<execution>
+						<id>default-prepare-agent</id>
+						<goals>
+							<goal>prepare-agent</goal>
+						</goals>
+					</execution>
+					<execution>
+						<id>default-report</id>
+						<phase>prepare-package</phase>
+						<goals>
+							<goal>report</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
 	</build>
 
 </project>
diff --git a/neo4j-extensions/transaction-event-handler/pom.xml b/neo4j-extensions/transaction-event-handler/pom.xml
index 7130193..fd5eb43 100755
--- a/neo4j-extensions/transaction-event-handler/pom.xml
+++ b/neo4j-extensions/transaction-event-handler/pom.xml
@@ -15,17 +15,17 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-1.2-api</artifactId>
-            <version>2.14.1</version>
+            <version>2.8.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-api</artifactId>
-            <version>2.14.1</version>
+            <version>2.8.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.14.1</version>
+            <version>2.8.2</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
@@ -71,12 +71,12 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.8.1</version>
-                    <configuration>
-                        <release>11</release>
-                    </configuration>
+                    <version>2.3.2</version>
+					<configuration>
+						<source>1.8</source>
+						<target>1.8</target>
+					</configuration>
                 </plugin>
             </plugins>
         </pluginManagement>
@@ -84,17 +84,12 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.0</version>
-                <configuration>
-                    <argLine>
-                        --illegal-access=permit
-                    </argLine>
-                </configuration>
+                <version>2.20</version>
             </plugin>
 			<plugin>
 				<groupId>org.jacoco</groupId>
 				<artifactId>jacoco-maven-plugin</artifactId>
-				<version>0.8.6</version>
+				<version>0.7.9</version>
 				<configuration>
 					<excludes>
 						<exclude>**/common/**</exclude>
diff --git a/pom.xml b/pom.xml
index 9e01d03..25e6a2a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,6 +11,9 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<version.compiler.plugin>2.3.1</version.compiler.plugin>
+		<maven.compiler.target>1.8</maven.compiler.target>
+		<maven.compiler.source>1.8</maven.compiler.source>
 	</properties>
 
 	<modules>
@@ -22,17 +25,9 @@
 	<build>
 		<pluginManagement>
 			<plugins>
-                <plugin>
-                    <groupId>org.codehaus.mojo</groupId>
-                    <artifactId>versions-maven-plugin</artifactId>
-                    <version>2.5</version>
-                    <configuration>
-                        <generateBackupPoms>false</generateBackupPoms>
-                    </configuration>
-                </plugin>
 				<plugin>
 					<artifactId>maven-assembly-plugin</artifactId>
-                    <version>3.3.0</version>
+                    <version>2.3</version>
 					<configuration>
 						<descriptors>
 							<descriptor>src/assembly/bin.xml</descriptor>
@@ -42,13 +37,39 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.8.1</version>
-                    <configuration>
-                        <release>11</release>
-                    </configuration>
+                    <version>2.3.2</version>
+					<configuration>
+						<source>1.8</source>
+						<target>1.8</target>
+					</configuration>
                 </plugin>
 			</plugins>
 		</pluginManagement>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>org.jacoco</groupId>
+				<artifactId>jacoco-maven-plugin</artifactId>
+				<version>0.8.6</version>
+				<executions>
+					<execution>
+						<goals>
+							<goal>prepare-agent</goal>
+						</goals>
+					</execution>
+					<execution>
+						<id>generate-code-coverage-report</id>
+						<phase>test</phase>
+						<goals>
+							<goal>report</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
 	</build>
 
 </project>