diff --git a/rpm_spec/qubes-core-admin-client.spec.in b/rpm_spec/qubes-core-admin-client.spec.in
index f7f79f0..9b3282f 100644
--- a/rpm_spec/qubes-core-admin-client.spec.in
+++ b/rpm_spec/qubes-core-admin-client.spec.in
@@ -26,6 +26,7 @@ Requires:   python%{python3_pkgversion}-daemon
 Requires:   python%{python3_pkgversion}-docutils
 Requires:   python%{python3_pkgversion}-lxml
 Requires:   python%{python3_pkgversion}-xcffib
+Conflicts:  qubes-core-dom0 < 4.1.12
 Conflicts:  qubes-manager < 4.0.6
 
 %description -n python%{python3_pkgversion}-qubesadmin