diff --git a/files/requirements.txt b/files/requirements_mini.txt
similarity index 90%
rename from files/requirements.txt
rename to files/requirements_mini.txt
index 52f8096..0f26c3c 100644
--- a/files/requirements.txt
+++ b/files/requirements_mini.txt
@@ -10,8 +10,6 @@ python-socketio
 #Werkzeug==2.0.1
 Werkzeug
 Jinja2
-markupsafe
-itsdangerous
 
 # common util
 apscheduler
diff --git a/files/requirements_normal.txt b/files/requirements_normal.txt
index 77efb9b..6482d8b 100644
--- a/files/requirements_normal.txt
+++ b/files/requirements_normal.txt
@@ -1,11 +1,6 @@
 psutil
 gevent
 gevent-websocket
-#celery==5.0.5
 celery
 redis
-lxml
-pillow
-#selenium==3.141.0
-selenium
-pycryptodome
\ No newline at end of file
+pycryptodome
diff --git a/files/requirements_useful.txt b/files/requirements_useful.txt
new file mode 100644
index 0000000..e7f4c45
--- /dev/null
+++ b/files/requirements_useful.txt
@@ -0,0 +1,3 @@
+lxml
+pillow
+selenium