diff --git a/requirements.txt b/requirements.txt
index bcfdc694..86b41dc9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
-PyQt5
+PyQt5<5.12
+dataclasses; python<=3.6
 qdarkstyle
 futu-api
 websocket-client
@@ -9,5 +10,3 @@ matplotlib
 seaborn
 jupyter
 ta-lib; platform_system=="Unix"
-https://download.lfd.uci.edu/pythonlibs/r5uhg2lo/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl; platform_system=="Windows"
-
diff --git a/setup.py b/setup.py
index a49ce40a..87493d9f 100644
--- a/setup.py
+++ b/setup.py
@@ -49,5 +49,8 @@ s = setup(
         '*.json', '*.md', '*.ico',
         '*.dll', '*.so',
     ]},
+    install_requires=[
+        ""
+    ],
     ext_modules=[vnctptd, vnctpmd],
 )