diff --git a/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java b/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
index b8ea0a5..5906727 100644
--- a/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
+++ b/src/main/java/eu/dnetlib/openaire/usermanagement/utils/HttpUtils.java
@@ -10,11 +10,7 @@ import org.springframework.http.*;
 import org.springframework.stereotype.Component;
 import org.springframework.web.client.RestTemplate;
 
-import java.io.UnsupportedEncodingException;
-import java.net.URLDecoder;
-import java.net.URLEncoder;
 import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
 import java.util.Map;
 
 @Component