diff --git a/qt6-serialbus.changes b/qt6-serialbus.changes
index 14180be..1d9297e 100644
--- a/qt6-serialbus.changes
+++ b/qt6-serialbus.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Jun 30 15:13:15 UTC 2023 - Christophe Marin <christophe@krop.fr>
+
+- Update subpackages requirements
+
 -------------------------------------------------------------------
 Wed May 24 07:45:42 UTC 2023 - Christophe Marin <christophe@krop.fr>
 
diff --git a/qt6-serialbus.spec b/qt6-serialbus.spec
index f0439fa..40837b0 100644
--- a/qt6-serialbus.spec
+++ b/qt6-serialbus.spec
@@ -72,7 +72,9 @@ Development files for the Qt 6 SerialBus library.
 
 %package private-devel
 Summary:        Non-ABI stable API for the Qt 6 SerialBus library
+Requires:       cmake(Qt6Network) = %{real_version}
 Requires:       cmake(Qt6SerialBus) = %{real_version}
+Requires:       cmake(Qt6SerialPort) = %{real_version}
 %requires_eq    qt6-core-private-devel
 
 %description private-devel