diff --git a/flatpak-management.nix b/flatpak-management.nix
index e9c01ac..9657443 100644
--- a/flatpak-management.nix
+++ b/flatpak-management.nix
@@ -31,13 +31,10 @@ let
       ${pkgs.flatpak}/bin/flatpak install -y --noninteractive flathub "$app"
     done
 
-    # Hardcoded Threema install because the beta is not on Flathub yet
-    if ${pkgs.flatpak}/bin/flatpak info ch.threema.threema-desktop >/dev/null 2>&1; then
-      echo "Threema Desktop is already installed"
-    else
-      echo "Installing Threema Desktop..."
-      ${pkgs.flatpak}/bin/flatpak install -y --from https://releases.threema.ch/flatpak/threema-desktop/ch.threema.threema-desktop.flatpakref --noninteractive
-    fi
+    # Ensure Threema Desktop (beta, non-Flathub) is installed or updated
+    echo "Ensuring Threema Desktop is installed or updated..."
+    ${pkgs.flatpak}/bin/flatpak install -y --or-update --from \
+      https://releases.threema.ch/flatpak/threema-desktop/ch.threema.threema-desktop.flatpakref
 
     # Remove unused Flatpaks
     ${pkgs.flatpak}/bin/flatpak uninstall --unused -y --noninteractive