diff --git a/application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java b/application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java
index 65488a1cba..4f83c672c3 100644
--- a/application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java
+++ b/application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java
@@ -330,7 +330,7 @@ public class SqlDatabaseUpgradeService implements DatabaseEntitiesUpgradeService
                     if (isOldSchema(conn, 3001000)) {
 
                         try {
-                            conn.createStatement().execute("ALTER TABLE device ADD COLUMN device_profile_id uuid, ADD COLUMN device_data varchar");
+                            conn.createStatement().execute("ALTER TABLE device ADD COLUMN device_profile_id uuid, ADD COLUMN device_data jsonb");
                         } catch (Exception e) {
                         }
 
diff --git a/dao/src/main/java/org/thingsboard/server/dao/device/DeviceProfileServiceImpl.java b/dao/src/main/java/org/thingsboard/server/dao/device/DeviceProfileServiceImpl.java
index 1caa3ae6f9..529e1992ac 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/device/DeviceProfileServiceImpl.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/device/DeviceProfileServiceImpl.java
@@ -165,7 +165,7 @@ public class DeviceProfileServiceImpl extends AbstractEntityService implements D
     @Override
     public DeviceProfile createDefaultDeviceProfile(TenantId tenantId) {
         log.trace("Executing createDefaultDeviceProfile tenantId [{}]", tenantId);
-        return doCreateDefaultDeviceProfile(tenantId, "Default", true);
+        return doCreateDefaultDeviceProfile(tenantId, "default", true);
     }
 
     @Override