diff --git a/account/src/main/java/de/muehlencord/shared/account/business/config/boundary/ConfigService.java b/account/src/main/java/de/muehlencord/shared/account/business/config/boundary/ConfigService.java
index ec5ba56..e4ee441 100644
--- a/account/src/main/java/de/muehlencord/shared/account/business/config/boundary/ConfigService.java
+++ b/account/src/main/java/de/muehlencord/shared/account/business/config/boundary/ConfigService.java
@@ -30,6 +30,7 @@ import javax.ejb.LockType;
 import javax.ejb.Singleton;
 import javax.ejb.Startup;
 import javax.ejb.TransactionAttribute;
+import javax.ejb.TransactionAttributeType;
 import static javax.ejb.TransactionAttributeType.REQUIRES_NEW;
 import javax.inject.Inject;
 import javax.persistence.EntityManager;
@@ -70,6 +71,8 @@ public class ConfigService implements Serializable {
      * more than one value is defined for the given key but none of the values
      * is defined for the system user
      */
+    @Lock(LockType.READ)     
+    @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) 
     public String getConfigValue(String configKey) throws ConfigException {
         Query query = em.createNamedQuery("ConfigEntity.findByConfigKey");
         query.setParameter("application", application);
@@ -95,6 +98,8 @@ public class ConfigService implements Serializable {
         }
     }
 
+    @Lock(LockType.READ)      
+    @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) 
     public String getConfigValue(String configKey, String defaultValue) throws ConfigException {
         return getConfigValue(configKey, defaultValue, false);
     }
@@ -121,6 +126,8 @@ public class ConfigService implements Serializable {
         return defaultValue;
     }
 
+    @Lock(LockType.READ)
+    @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) 
     public String getConfigValue(String configKey, Account account, boolean fallbackToSystem) throws ConfigException {
         Query query = em.createNamedQuery("ConfigEntity.findByConfigKeyAndAccount");
         query.setParameter("application", application);