diff --git a/install/desktop/theme.sh b/install/desktop/theme.sh
index d09065a..c744c2a 100644
--- a/install/desktop/theme.sh
+++ b/install/desktop/theme.sh
@@ -1,10 +1,15 @@
 #!/bin/bash
 
 # Use dark mode for QT apps too (like kdenlive)
-sudo pacman -S --noconfirm kvantum-qt5
+if ! yay -Q kvantum-qt5 &>/dev/null; then
+  yay -S --noconfirm kvantum-qt5
+fi
 
 # Prefer dark mode everything
-sudo pacman -S --noconfirm gnome-themes-extra # Adds Adwaita-dark theme
+if ! yay -Q gnome-themes-extra &>/dev/null; then
+  yay -S --noconfirm gnome-themes-extra # Adds Adwaita-dark theme
+fi
+
 gsettings set org.gnome.desktop.interface gtk-theme "Adwaita-dark"
 gsettings set org.gnome.desktop.interface color-scheme "prefer-dark"