diff --git a/README.md b/README.md
index ec330852272b21d449be1e9ea4f94dd7533007cd..85efdd50544e12cbab852facedbafae3bda73738 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
  * Dspace server "5.x"
  * Postgres >=9.4
     * If you will install Dspace, it is recommended to use Postgres "9.4"
- * Elasticsearch "5.4"
+ * Elasticsearch "6.2.4"
  * Redis
 
 ## Postgres