diff --git a/docs/rpa.md b/docs/rpa.md
index ea87575..5fda903 100644
--- a/docs/rpa.md
+++ b/docs/rpa.md
@@ -3,9 +3,14 @@ modal setup
 python -m modal setup
 ```
 
+serve web by env in local
+```shell
+# --env dev
+modal serve --env dev cluster.rpa_web_end_point
+```
+
 deploy by env
 ```shell
 # --env dev
 modal deploy --env dev cluster.rpa
-#modal deploy --env dev cluster.rpa_web_end_point
 ```
\ No newline at end of file
diff --git a/src/cluster/rpa_web_end_point.py b/src/cluster/rpa_web_end_point.py
index dcd1145..55df78e 100644
--- a/src/cluster/rpa_web_end_point.py
+++ b/src/cluster/rpa_web_end_point.py
@@ -12,6 +12,7 @@ image = (modal.Image.debian_slim()
     "fastapi[standard]",
     "pydantic",
     "scalar-fastapi>=1.0.3",
+    "loguru>=0.7.3",
 ])
          .pip_install())
 app = modal.App("fastapi_rpa", image=image)