diff --git a/pom.xml b/pom.xml
index 3369141..a4bbafa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -103,9 +103,9 @@
 		</dependency>
 
 		<dependency>
-			<groupId>org.gcube.data-catalogue</groupId>
-			<artifactId>ckan-util-library</artifactId>
-			<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
+			<groupId>org.gcube.data-publishing</groupId>
+			<artifactId>gcat-client</artifactId>
+			<version>[1.0.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 			<scope>compile</scope>
 		</dependency>
 
diff --git a/src/main/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvester.java b/src/main/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvester.java
index e20b704..d1a6dd5 100644
--- a/src/main/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvester.java
+++ b/src/main/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvester.java
@@ -4,6 +4,7 @@ import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
@@ -11,18 +12,17 @@ import java.util.Set;
 import java.util.SortedSet;
 import java.util.TreeSet;
 
-import org.apache.commons.lang.Validate;
 import org.gcube.common.authorization.client.exceptions.ObjectNotFound;
-import org.gcube.datacatalogue.ckanutillibrary.server.DataCatalogueFactory;
-import org.gcube.datacatalogue.ckanutillibrary.server.DataCatalogueImpl;
 import org.gcube.dataharvest.AccountingDataHarvesterPlugin;
 import org.gcube.dataharvest.datamodel.HarvestedDataKey;
 import org.gcube.dataharvest.harvester.BasicHarvester;
 import org.gcube.dataharvest.utils.Utils;
+import org.gcube.gcat.client.Group;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import eu.trentorise.opendata.jackan.model.CkanGroup;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
 
 /**
  * The Class SoBigDataHarvester.
@@ -47,9 +47,6 @@ public abstract class SoBigDataHarvester extends BasicHarvester {
 	//Added by Francesco
 	protected HashMap<String,String> mapWsFolderNameToVRE;
 	
-	//Added by Francesco
-	private DataCatalogueFactory catalogueFactory;
-	
 	protected SortedSet<String> contexts;
 	
 	/**
@@ -64,8 +61,6 @@ public abstract class SoBigDataHarvester extends BasicHarvester {
 	public SoBigDataHarvester(Date start, Date end, SortedSet<String> contexts) throws Exception {
 		super(start, end);
 		
-		this.catalogueFactory = DataCatalogueFactory.getFactory();
-		
 		String currentContext = Utils.getCurrentContext();
 		
 		// Truncating the context to the last / (the last / is retained for filtering issues) 
@@ -100,10 +95,8 @@ public abstract class SoBigDataHarvester extends BasicHarvester {
 		
 		logger.info("Built from properties the mapping 'SystemType' to 'DB entry' {}", mapSystemTypeToDBEntry);
 		
-		String currentContext = Utils.getCurrentContext();
-		
 		//GET CATALOGUE'S GROUPS
-		List<String> groups = loadGroupsFromCKAN(currentContext);
+		List<String> groups = listGroup();
 		//NORMALIZING THE GROUP NAME TO MATCH WITH VRE NAME
 		Map<String,String> mapNormalizedGroups = normalizeGroups(groups);
 		logger.debug("Map of Normalized Groups is {} ", mapNormalizedGroups);
@@ -153,28 +146,18 @@ public abstract class SoBigDataHarvester extends BasicHarvester {
 		return listNGroups;
 	}
 	
-	/**
-	 * Load groups from ckan.
-	 *
-	 * @param scope the scope
-	 * @return the list
-	 */
-	private List<String> loadGroupsFromCKAN(String scope) {
-		List<String> groups = new ArrayList<String>();
-		String ckanURL = "";
-		try {
-			DataCatalogueImpl utils = catalogueFactory.getUtilsPerScope(scope);
-			ckanURL = utils.getCatalogueUrl();
-			List<CkanGroup> theGroups = utils.getGroups();
-			Validate.notNull(theGroups, "The list of Groups is null");
-			for(CkanGroup ckanGroup : theGroups) {
-				groups.add(ckanGroup.getName());
-			}
-		} catch(Exception e) {
-			logger.error("Error occurred on getting CKAN groups for scope {} and CKAN URL {}", scope, ckanURL, e);
+	public static List<String> listGroup() throws Exception {
+		List<String> groupList = new ArrayList<>();
+		Group group = new Group();
+		String groups = group.list(1000, 0);
+		ObjectMapper objectMapper = new ObjectMapper();
+		JsonNode jsonNodeGroups = objectMapper.readTree(groups);
+		Iterator<JsonNode> iterator = jsonNodeGroups.elements();
+		while(iterator.hasNext()){
+			JsonNode jsonNode = iterator.next();
+			groupList.add(jsonNode.asText());
 		}
-		
-		return groups;
+		return groupList;
 	}
 	
 	/**
diff --git a/src/test/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvesterTest.java b/src/test/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvesterTest.java
new file mode 100644
index 0000000..943b4d4
--- /dev/null
+++ b/src/test/java/org/gcube/dataharvest/harvester/sobigdata/SoBigDataHarvesterTest.java
@@ -0,0 +1,21 @@
+package org.gcube.dataharvest.harvester.sobigdata;
+
+import java.util.List;
+
+import org.gcube.dataharvest.utils.ContextTest;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SoBigDataHarvesterTest extends ContextTest {
+	
+	private static Logger logger = LoggerFactory.getLogger(SoBigDataHarvesterTest.class);
+	
+	@Test
+	public void testGroupList() throws Exception {
+		ContextTest.setContextByName("/d4science.research-infrastructures.eu/D4Research/AGINFRAplusDev");
+		List<String> groups = SoBigDataHarvester.listGroup();
+		logger.debug("{}", groups);
+	}
+	
+}
diff --git a/src/test/java/org/gcube/dataharvest/utils/ContextAuthorizationTest.java b/src/test/java/org/gcube/dataharvest/utils/ContextAuthorizationTest.java
index b716a1f..5126fc2 100644
--- a/src/test/java/org/gcube/dataharvest/utils/ContextAuthorizationTest.java
+++ b/src/test/java/org/gcube/dataharvest/utils/ContextAuthorizationTest.java
@@ -5,7 +5,6 @@ import java.io.InputStream;
 import java.util.Properties;
 
 import org.gcube.dataharvest.AccountingDataHarvesterPlugin;
-import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;