diff --git a/package/archlinux/PKGBUILD b/package/archlinux/PKGBUILD
index b5ae795..8d1b39d 100644
--- a/package/archlinux/PKGBUILD
+++ b/package/archlinux/PKGBUILD
@@ -8,7 +8,7 @@ arch=("i686" "x86_64")
 url="https://github.com/kbumsik/VirtScreen"
 license=('GPL')
 groups=()
-depends=('xorg-xrandr' 'x11vnc' 'python-pyqt5' 'qt5-quickcontrols2' 'python-quamash-git' 'python-netifaces')
+depends=('xorg-xrandr' 'x11vnc' 'python-pyqt5' 'qt5-quickcontrols2' 'python-qasync' 'python-netifaces')
 makedepends=('python-pip' 'perl')
 optdepends=(
     'arandr: for display settings option'
@@ -38,4 +38,4 @@ package() {
   # These are already installed by setup.py
   # install -Dm644 "data/$pkgname.desktop" "$pkgdir/usr/share/applications/$pkgname.desktop"
   # install -Dm644 "data/icon.png" "$pkgdir/usr/share/pixmaps/$pkgname.png"
-}
\ No newline at end of file
+}
diff --git a/setup.py b/setup.py
index 36eeb37..b81c2a3 100644
--- a/setup.py
+++ b/setup.py
@@ -143,8 +143,7 @@ setup(
     #
     # For an analysis of "install_requires" vs pip's requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
-    install_requires=['PyQt5>=5.10.1',
-                      'Quamash>=0.6.0',
+    install_requires=['Quasync>=0.9.1',
                       'netifaces>=0.10.6'],  # Optional
 
     # List additional groups of dependencies here (e.g. development
diff --git a/virtscreen/__main__.py b/virtscreen/__main__.py
index 5237741..80d3316 100755
--- a/virtscreen/__main__.py
+++ b/virtscreen/__main__.py
@@ -22,7 +22,7 @@ from PyQt5.QtWidgets import QApplication
 from PyQt5.QtQml import qmlRegisterType, QQmlApplicationEngine
 from PyQt5.QtGui import QIcon
 from PyQt5.QtCore import Qt, QUrl
-from quamash import QEventLoop
+from qasync import QEventLoop
 
 from .display import DisplayProperty
 from .xrandr import XRandR