diff --git a/fhir-odoo/src/main/java/com/ozonehis/fhir/FhirOdooConfig.java b/fhir-odoo/src/main/java/com/ozonehis/fhir/FhirOdooConfig.java
index cc78e20..accb48e 100644
--- a/fhir-odoo/src/main/java/com/ozonehis/fhir/FhirOdooConfig.java
+++ b/fhir-odoo/src/main/java/com/ozonehis/fhir/FhirOdooConfig.java
@@ -7,6 +7,7 @@
  */
 package com.ozonehis.fhir;
 
+import com.odoojava.api.OdooXmlRpcProxy;
 import lombok.Data;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Value;
@@ -42,4 +43,14 @@ public void validateOdooProperties() {
             throw new IllegalArgumentException("OdooProtocol is required");
         }
     }
+
+    public OdooXmlRpcProxy.RPCProtocol getRPCProtocol() {
+        if (OdooProtocol.equalsIgnoreCase("http")) {
+            return OdooXmlRpcProxy.RPCProtocol.RPC_HTTP;
+        } else if (OdooProtocol.equalsIgnoreCase("https")) {
+            return OdooXmlRpcProxy.RPCProtocol.RPC_HTTPS;
+        } else {
+            throw new IllegalArgumentException("Invalid OdooProtocol");
+        }
+    }
 }
diff --git a/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/SessionHolder.java b/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/SessionHolder.java
index 34e09e5..adf2faa 100644
--- a/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/SessionHolder.java
+++ b/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/SessionHolder.java
@@ -8,9 +8,7 @@
 package com.ozonehis.fhir.odoo;
 
 import com.odoojava.api.Session;
-import lombok.NoArgsConstructor;
 
-@NoArgsConstructor
 public class SessionHolder {
 
     public Session odooSession;
diff --git a/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/security/BasicAuthenticationInterceptor.java b/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/security/BasicAuthenticationInterceptor.java
index 5c40027..66f0480 100644
--- a/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/security/BasicAuthenticationInterceptor.java
+++ b/fhir-odoo/src/main/java/com/ozonehis/fhir/odoo/security/BasicAuthenticationInterceptor.java
@@ -63,6 +63,7 @@ public boolean authenticate(HttpServletRequest request, HttpServletResponse resp
 
     private boolean authenticateWithUsernameAndPassword(String username, String password) {
         Session odooSession = new Session(
+                fhirOdooConfig.getRPCProtocol(),
                 fhirOdooConfig.getOdooHost(),
                 Integer.parseInt(fhirOdooConfig.getOdooPort()),
                 fhirOdooConfig.getOdooDatabase(),
diff --git a/fhir-odoo/src/main/resources/fhir-odoo.properties b/fhir-odoo/src/main/resources/fhir-odoo.properties
index 0438704..e9d02a1 100644
--- a/fhir-odoo/src/main/resources/fhir-odoo.properties
+++ b/fhir-odoo/src/main/resources/fhir-odoo.properties
@@ -16,4 +16,4 @@ fhir.odoo.port=${ODOO_PORT:8069}
 fhir.odoo.database=${ODOO_DATABASE:odoo}
 
 # The protocol to use to connect to the Odoo server
-fhir.odoo.protocol=${ODOO_PROTOCOL:RPC_HTTPS}
+fhir.odoo.protocol=${ODOO_PROTOCOL:RPC_HTTP}