diff --git a/pom.xml b/pom.xml
index 8e032ec..7fd74c1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,14 +42,6 @@
 			<groupId>org.gcube.information-system</groupId>
 			<artifactId>information-system-model</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>org.gcube.common</groupId>
-			<artifactId>authorization-client</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.gcube.common</groupId>
-			<artifactId>gxHTTP</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPUtility.java b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPUtility.java
index 6a27071..603fa2d 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPUtility.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/api/rest/httputils/HTTPUtility.java
@@ -6,7 +6,6 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
 
-import org.gcube.common.gxhttp.reference.GXConnection.HTTPMETHOD;
 import org.gcube.informationsystem.base.reference.Element;
 import org.gcube.informationsystem.model.reference.entities.Facet;
 import org.gcube.informationsystem.model.reference.entities.Resource;
@@ -74,7 +73,7 @@ public class HTTPUtility {
 			int responseCode = connection.getResponseCode();
 			String responseMessage = connection.getResponseMessage();
 			
-			if(connection.getRequestMethod().compareTo(HTTPMETHOD.HEAD.toString())==0) {
+			if(connection.getRequestMethod().compareTo("HEAD")==0) {
 				if(responseCode == HttpURLConnection.HTTP_NO_CONTENT) {
 					return null;
 				}