diff --git a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/AbstractServer.java b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/AbstractServer.java
index 4e1e72471a3eb72c59db37024d56ec33317872ff..cb5e1d901085163da1aacbec4dd50889467babee 100644
--- a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/AbstractServer.java
+++ b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/AbstractServer.java
@@ -621,12 +621,6 @@ public abstract class AbstractServer<T> extends AbstractServiceWithLogger<T> imp
 
         final Session session = sessionManager.getSession(sessionToken);
 
-        PersonPE attachedPerson = getDAOFactory().getPersonDAO().tryFindPersonByUserId(session.getUserName());
-        if(attachedPerson != null)
-        {
-            getDAOFactory().getPersonDAO().lock(attachedPerson);
-        }
-
         return displaySettingsProvider.executeActionWithPersonLock(session.getUserName(), new IDelegatedActionWithResult<SessionContextDTO>()
         {
             @Override public SessionContextDTO execute(final boolean didOperationSucceed)
diff --git a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/api/v1/GeneralInformationChangingService.java b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/api/v1/GeneralInformationChangingService.java
index 9226110c3252a700335ef12a21d02da555e650b8..c724f7d56b90f8e034430d5f9c2d2a2acdef595e 100644
--- a/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/api/v1/GeneralInformationChangingService.java
+++ b/server-application-server/source/java/ch/systemsx/cisd/openbis/generic/server/api/v1/GeneralInformationChangingService.java
@@ -150,12 +150,6 @@ public class GeneralInformationChangingService extends
             final PersonPE person = session.tryGetPerson();
             if (person != null)
             {
-                PersonPE attachedPerson = getDAOFactory().getPersonDAO().tryFindPersonByUserId(person.getUserId());
-                if(attachedPerson != null)
-                {
-                    getDAOFactory().getPersonDAO().lock(attachedPerson);
-                }
-
                 displaySettingsProvider.executeActionWithPersonLock(person, new IDelegatedActionWithResult<Object>()
                 {
                     @Override public Object execute(final boolean didOperationSucceed)