diff --git a/client-api/pom.xml b/client-api/pom.xml
index 785a08c0..353f48b2 100644
--- a/client-api/pom.xml
+++ b/client-api/pom.xml
@@ -1,6 +1,6 @@
 <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">
+		 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">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>it.unibo.arces.wot</groupId>
@@ -18,7 +18,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.5.13</version>
+			<version>4.5.14</version>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpcore -->
 		<dependency>
@@ -30,13 +30,13 @@
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-simple</artifactId>
-			<version>1.7.26</version>
+			<version>2.0.13</version>
 		</dependency>
 		<!-- 2.0.2 -->
 		<dependency>
 			<groupId>org.glassfish.tyrus.bundles</groupId>
 			<artifactId>tyrus-standalone-client</artifactId>
-			<version>2.1.3</version>
+			<version>2.1.5</version>
 		</dependency>
 		<!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
 		<dependency>
@@ -48,12 +48,7 @@
 		<dependency>
 			<groupId>javax.xml.bind</groupId>
 			<artifactId>jaxb-api</artifactId>
-			<version>2.3.0</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.logging.log4j</groupId>
-			<artifactId>log4j-core</artifactId>
-			<version>2.23.1</version>
+			<version>2.4.0-b180830.0359</version>
 		</dependency>
 	</dependencies>
-</project>
+</project>
\ No newline at end of file
diff --git a/engine/pom.xml b/engine/pom.xml
index 9dab3ea5..d4957b70 100644
--- a/engine/pom.xml
+++ b/engine/pom.xml
@@ -1,6 +1,6 @@
 <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">
+		 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">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>it.unibo.arces.wot</groupId>
@@ -19,7 +19,7 @@
 			<url>http://dl.bintray.com/cy6ergn0m/maven</url>
 		</pluginRepository>
 	</pluginRepositories>
-	
+
 	<build>
 		<plugins>
 			<!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-deploy-plugin -->
@@ -85,7 +85,7 @@
 							<transformers>
 								<!-- add Main-Class to manifest file -->
 								<transformer
-									implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+										implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
 									<mainClass>it.unibo.arces.wot.sepa.engine.core.Engine</mainClass>
 									<manifestEntries>
 										<Multi-Release>true</Multi-Release>
@@ -126,7 +126,7 @@
 		<dependency>
 			<groupId>org.apache.directory.api</groupId>
 			<artifactId>api-all</artifactId>
-			<version>2.0.0.AM4</version>
+			<version>2.1.6</version>
 			<exclusions>
 				<exclusion>
 					<groupId>org.slf4j</groupId>
@@ -138,4 +138,4 @@
 
 	</dependencies>
 
-</project>
+</project>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 3449aa27..77c69fb6 100644
--- a/pom.xml
+++ b/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">
+		 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">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>it.unibo.arces.wot</groupId>
 	<artifactId>sepa</artifactId>
@@ -138,7 +138,7 @@
 										</goals>
 									</pluginExecutionFilter>
 									<action>
-										<ignore></ignore>
+										<ignore/>
 									</action>
 								</pluginExecution>
 							</pluginExecutions>
@@ -157,7 +157,7 @@
 		<dependency>
 			<groupId>org.apache.jena</groupId>
 			<artifactId>apache-jena-libs</artifactId>
-			<version>4.9.0</version>
+			<version>5.0.0</version>
 			<type>pom</type>
 			<exclusions>
 				<exclusion>
@@ -200,22 +200,22 @@
 		<dependency>
 			<groupId>com.nimbusds</groupId>
 			<artifactId>nimbus-jose-jwt</artifactId>
-			<version>9.31</version>
+			<version>9.40</version>
 		</dependency>
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter-api</artifactId>
-			<version>5.10.0</version>
+			<version>5.10.3</version>
 		</dependency>
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter-engine</artifactId>
-			<version>5.10.0</version>
+			<version>5.10.2</version>
 		</dependency>
 		<dependency>
 			<groupId>org.java-websocket</groupId>
 			<artifactId>Java-WebSocket</artifactId>
-			<version>1.5.3</version>
+			<version>1.5.7</version>
 		</dependency>
 	</dependencies>
-</project>
+</project>
\ No newline at end of file