diff --git a/tests/modules/services/window-managers/spectrwm/spectrwm-simple-config.nix b/tests/modules/services/window-managers/spectrwm/spectrwm-simple-config.nix
index 3ba13b4d3..8c7fd00cf 100644
--- a/tests/modules/services/window-managers/spectrwm/spectrwm-simple-config.nix
+++ b/tests/modules/services/window-managers/spectrwm/spectrwm-simple-config.nix
@@ -1,6 +1,8 @@
 { ... }:
 
 {
+  imports = [ ./spectrwm-stubs.nix ];
+
   xsession.windowManager.spectrwm = {
     enable = true;
     settings = {
diff --git a/tests/modules/services/window-managers/spectrwm/spectrwm-stubs.nix b/tests/modules/services/window-managers/spectrwm/spectrwm-stubs.nix
new file mode 100644
index 000000000..7f64ae083
--- /dev/null
+++ b/tests/modules/services/window-managers/spectrwm/spectrwm-stubs.nix
@@ -0,0 +1,13 @@
+{ config, lib, ... }: {
+  # Avoid unnecessary downloads in CI jobs and/or make out paths constant, i.e.,
+  # not containing hashes, version numbers etc.
+  test.stubs = { spectrwm = { }; };
+
+  nixpkgs.overlays = [
+    (_final: _prev: {
+      dbus = config.lib.test.mkStubPackage { name = "dbus"; };
+      systemd =
+        lib.makeOverridable (_attrs: config.lib.test.mkStubPackage { }) { };
+    })
+  ];
+}