diff --git a/src/main/java/org/gcube/accounting/persistence/AccountingPersistenceConfiguration.java b/src/main/java/org/gcube/accounting/persistence/AccountingPersistenceConfiguration.java
index 52dc468..ba333d2 100644
--- a/src/main/java/org/gcube/accounting/persistence/AccountingPersistenceConfiguration.java
+++ b/src/main/java/org/gcube/accounting/persistence/AccountingPersistenceConfiguration.java
@@ -3,12 +3,11 @@
  */
 package org.gcube.accounting.persistence;
 
-import java.security.Key;
 import java.util.List;
 import java.util.Map;
 
 import org.gcube.accounting.datamodel.BasicUsageRecord;
-import org.gcube.common.encryption.StringEncrypter;
+import org.gcube.common.encryption.encrypter.StringEncrypter;
 import org.gcube.common.resources.gcore.ServiceEndpoint;
 import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
 import org.gcube.common.resources.gcore.ServiceEndpoint.Property;
@@ -75,7 +74,7 @@ public class AccountingPersistenceConfiguration extends PersistenceBackendConfig
 		return serviceEndpoints.get(0);
 	}
 	
-	private static String decrypt(String encrypted, Key... key) throws Exception {
+	private static String decrypt(String encrypted) throws Exception {
 		return StringEncrypter.getEncrypter().decrypt(encrypted);
 	}