diff --git a/src/main/java/blockchain/configuration/Config.java b/src/main/java/blockchain/configuration/Config.java
index dc22eb2..ebb4b53 100644
--- a/src/main/java/blockchain/configuration/Config.java
+++ b/src/main/java/blockchain/configuration/Config.java
@@ -16,14 +16,14 @@ public class Config {
 
 
     //CA
-    public static final String CA_ORG1_URL = "http://localhost:7054";
-    //public static final String CA_ORG1_URL = "http://vps577432.ovh.net:7054";
+    //public static final String CA_ORG1_URL = "http://127.0.0.1:7054";
+    public static final String CA_ORG1_URL = "http://vps577432.ovh.net:7054";
     //public static final String CA_ORG1_URL = "http://93.30.148.59:7054";
     //public static final String CA_ORG1_URL = "http://vps592802.ovh.net:7054";
 
     //ORDERER
-    public static final String ORDERER_URL = "grpc://localhost:7050";
-    //public static final String ORDERER_URL = "grpc://vps577432.ovh.net:7050";
+    //public static final String ORDERER_URL = "grpc://127.0.0.1:7050";
+    public static final String ORDERER_URL = "grpc://vps577432.ovh.net:7050";
     //public static final String ORDERER_URL = "grpc://93.30.148.59:7050";
     //public static final String ORDERER_URL = "grpc://vps592802.ovh.net:7050";
 
@@ -39,8 +39,8 @@ public class Config {
     //PEER 0
     public static final String ORG1_PEER_0 = "peer0.org1.example.com";
 
-    public static final String ORG1_PEER_0_URL = "grpc://localhost:7051";
-    //public static final String ORG1_PEER_0_URL = "grpc://vps577432.ovh.net:7051";
+    //public static final String ORG1_PEER_0_URL = "grpc://127.0.0.1:7051";
+    public static final String ORG1_PEER_0_URL = "grpc://vps577432.ovh.net:7051";
     //public static final String ORG1_PEER_0_URL = "grpc://93.30.148.59:7051";
     //ublic static final String ORG1_PEER_0_URL = "grpc://vps592802.ovh.net:7051";