diff --git a/src/aeros_simulation/service.py b/src/aeros_simulation/service.py
index fc058a8..a871279 100644
--- a/src/aeros_simulation/service.py
+++ b/src/aeros_simulation/service.py
@@ -378,7 +378,7 @@ async def execute_simulation(*, db_session: DbSession, simulation_id: Optional[U
     try:
         if not is_saved:
             response = await client.post(
-            f"{AEROS_BASE_URL}/api/Simulation/RunSimulation",
+            f"{AEROS_BASE_URL_OLD}/api/Simulation/RunSimulation",
             json=sim_data,
             headers={"Content-Type": "application/json"},
         )
diff --git a/src/config.py b/src/config.py
index 4307603..294d342 100644
--- a/src/config.py
+++ b/src/config.py
@@ -75,6 +75,8 @@ MAXIMO_API_KEY = config("MAXIMO_API_KEY", default="keys")
 
 AUTH_SERVICE_API = config("AUTH_SERVICE_API", default="http://192.168.1.82:8000/auth")
 AEROS_BASE_URL = config("AEROS_BASE_URL", default="http://192.168.1.102")
+AEROS_BASE_URL_OLD = config("AEROS_BASE_URL_OLD", default="http://192.168.1.87")
+
 WINDOWS_AEROS_BASE_URL = config("WINDOWS_AEROS_BASE_URL", default="http://192.168.1.102:8800")
 
 DEFAULT_PROJECT_NAME = config("DEFAULT_PROJECT_NAME", default="RBD TJB")