diff --git a/pom.xml b/pom.xml
index 837b09d..7f5f2fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,8 @@
 
 	<properties>
 		<jersey.version>2.25.1</jersey.version>
-		<jackson.version>2.8.8</jackson.version>
+		<!-- <jackson.version>2.8.8</jackson.version> -->
+		<jackson.version.eclude>2.9</jackson.version.eclude>
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
 		<enunciate.version>2.14.0</enunciate.version>
@@ -159,12 +160,6 @@
 			<artifactId>authorization-client</artifactId>
 		</dependency>
 
-		<!-- <dependency> -->
-		<!-- <groupId>com.fasterxml.jackson.core</groupId> -->
-		<!-- <artifactId>jackson-databind</artifactId> -->
-		<!-- <version>${jackson.version}</version> -->
-		<!-- </dependency> -->
-
 		<dependency>
 			<groupId>org.gcube.common</groupId>
 			<artifactId>storagehub-client-library</artifactId>
@@ -183,6 +178,13 @@
 			<scope>compile</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>[${jackson.version.eclude},)</version>
+			<scope>provided</scope>
+		</dependency>
+
 		<!-- java melody -->
 		<dependency>
 			<groupId>net.bull.javamelody</groupId>
diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/GeoportalExporter.java b/src/main/java/org/gcube/datatransfer/resolver/services/GeoportalExporter.java
index 3d0a46d..7e54809 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/GeoportalExporter.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/GeoportalExporter.java
@@ -1,7 +1,6 @@
 package org.gcube.datatransfer.resolver.services;
 
 import java.io.InputStream;
-import java.net.URISyntaxException;
 import java.util.LinkedHashMap;
 
 import javax.annotation.Nullable;
diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/StaticImageController.java b/src/main/java/org/gcube/datatransfer/resolver/services/StaticImageController.java
index 90b0297..9418993 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/StaticImageController.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/StaticImageController.java
@@ -6,7 +6,6 @@ package org.gcube.datatransfer.resolver.services;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.OutputStream;
 
 import javax.servlet.http.HttpServletRequest;