diff --git a/scense_demo/demo.py b/scense_demo/demo.py
index c76e01c..921de95 100644
--- a/scense_demo/demo.py
+++ b/scense_demo/demo.py
@@ -24,13 +24,7 @@ try:
 except ImportError:  # pragma: no cover
     from appPublic.log import debug, info, warning, exception
 
-try:
-    from ahserver.server_env import ServerEnv
-except ImportError:  # pragma: no cover
-    try:
-        from ahserver import ServerEnv
-    except ImportError:
-        ServerEnv = None
+from ahserver.serverenv import ServerEnv
 
 
 class DemoParamError(ValueError):
diff --git a/scense_demo/init.py b/scense_demo/init.py
index 4577411..5670448 100644
--- a/scense_demo/init.py
+++ b/scense_demo/init.py
@@ -16,7 +16,7 @@ from .demo import (
 def load_demo(env=None):
     """挂载 demo 模块到宿主应用 ServerEnv（宿主 app/scense.py init() 中调用）。"""
     if env is None:
-        from ahserver.server_env import ServerEnv
+        from ahserver.serverenv import ServerEnv
         env = ServerEnv()
     env.start_demo = start_demo
     env.stop_demo = stop_demo