diff --git a/api/app/core/config.py b/api/app/core/config.py
index 64c5520e..56a07f3f 100644
--- a/api/app/core/config.py
+++ b/api/app/core/config.py
@@ -241,6 +241,8 @@ class Settings:
     SMTP_PORT: int = int(os.getenv("SMTP_PORT", "587"))
     SMTP_USER: str = os.getenv("SMTP_USER", "")
     SMTP_PASSWORD: str = os.getenv("SMTP_PASSWORD", "")
+    
+    SANDBOX_URL: str = os.getenv("SANDBOX_URL", "")
 
     REFLECTION_INTERVAL_SECONDS: float = float(os.getenv("REFLECTION_INTERVAL_SECONDS", "300"))
     HEALTH_CHECK_SECONDS: float = float(os.getenv("HEALTH_CHECK_SECONDS", "600"))
diff --git a/api/app/core/workflow/nodes/code/node.py b/api/app/core/workflow/nodes/code/node.py
index 69c660fe..d715be7d 100644
--- a/api/app/core/workflow/nodes/code/node.py
+++ b/api/app/core/workflow/nodes/code/node.py
@@ -14,6 +14,7 @@ from app.core.workflow.engine.variable_pool import VariablePool
 from app.core.workflow.nodes import BaseNode
 from app.core.workflow.nodes.code.config import CodeNodeConfig
 from app.core.workflow.variable.base_variable import VariableType, DEFAULT_VALUE
+from app.core.config import settings
 
 logger = logging.getLogger(__name__)
 
@@ -131,7 +132,7 @@ class CodeNode(BaseNode):
 
         async with httpx.AsyncClient(timeout=60) as client:
             response = await client.post(
-                "http://sandbox:8194/v1/sandbox/run",
+                f"{settings.SANDBOX_URL}:8194/v1/sandbox/run",
                 headers={
                     "x-api-key": 'redbear-sandbox'
                 },