diff --git a/main/qt6-serialbus/.checksums b/main/qt6-serialbus/.checksums
index 533e78374..67a43aa90 100644
--- a/main/qt6-serialbus/.checksums
+++ b/main/qt6-serialbus/.checksums
@@ -1 +1 @@
-dc72b8d73e49c8a51b1c90e4f6e4c3c0  qt6-serialbus-6.6.0.tar.xz
+6f817fa091e5979b9c613d2a44be35ba  qt6-serialbus-6.6.1.tar.xz
diff --git a/main/qt6-serialbus/.pkgfiles b/main/qt6-serialbus/.pkgfiles
index f5690c97d..743ede493 100644
--- a/main/qt6-serialbus/.pkgfiles
+++ b/main/qt6-serialbus/.pkgfiles
@@ -1,30 +1,30 @@
-qt6-serialbus-6.6.0-1
+qt6-serialbus-6.6.1-1
 drwxr-xr-x root/root    usr/
 drwxr-xr-x root/root    usr/include/
 drwxr-xr-x root/root    usr/include/qt6/
 drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/
-drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.0/
-drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/
-drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcanbusdevice_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcanbusdeviceinfo_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcandbcfileparser_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcanframeprocessor_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcanmessagedescription_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcansignaldescription_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qcanuniqueiddescription_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbus_symbols_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusadu_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusclient_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbuscommevent_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusdevice_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusrtuserialclient_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusrtuserialserver_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbusserver_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbustcpclient_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qmodbustcpserver_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qtserialbus-config_p.h
--rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.0/QtSerialBus/private/qtserialbusexports_p.h
+drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.1/
+drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/
+drwxr-xr-x root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcanbusdevice_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcanbusdeviceinfo_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcandbcfileparser_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcanframeprocessor_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcanmessagedescription_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcansignaldescription_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qcanuniqueiddescription_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbus_symbols_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusadu_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusclient_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbuscommevent_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusdevice_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusrtuserialclient_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusrtuserialserver_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbusserver_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbustcpclient_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qmodbustcpserver_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qtserialbus-config_p.h
+-rw-r--r-- root/root    usr/include/qt6/QtSerialBus/6.6.1/QtSerialBus/private/qtserialbusexports_p.h
 -rw-r--r-- root/root    usr/include/qt6/QtSerialBus/QCanBus
 -rw-r--r-- root/root    usr/include/qt6/QtSerialBus/QCanBusDevice
 -rw-r--r-- root/root    usr/include/qt6/QtSerialBus/QCanBusDeviceInfo
@@ -129,8 +129,8 @@ drwxr-xr-x root/root    usr/lib/cmake/Qt6SerialBus/
 -rw-r--r-- root/root    usr/lib/cmake/Qt6SerialBus/Qt6VirtualCanBusPluginTargets.cmake
 -rw-r--r-- root/root    usr/lib/libQt6SerialBus.prl
 lrwxrwxrwx root/root    usr/lib/libQt6SerialBus.so -> libQt6SerialBus.so.6
-lrwxrwxrwx root/root    usr/lib/libQt6SerialBus.so.6 -> libQt6SerialBus.so.6.6.0
--rwxr-xr-x root/root    usr/lib/libQt6SerialBus.so.6.6.0
+lrwxrwxrwx root/root    usr/lib/libQt6SerialBus.so.6 -> libQt6SerialBus.so.6.6.1
+-rwxr-xr-x root/root    usr/lib/libQt6SerialBus.so.6.6.1
 drwxr-xr-x root/root    usr/lib/pkgconfig/
 -rw-r--r-- root/root    usr/lib/pkgconfig/Qt6SerialBus.pc
 drwxr-xr-x root/root    usr/lib/qt6/
diff --git a/main/qt6-serialbus/spkgbuild b/main/qt6-serialbus/spkgbuild
index e704cdd3b..8f8af7454 100644
--- a/main/qt6-serialbus/spkgbuild
+++ b/main/qt6-serialbus/spkgbuild
@@ -3,7 +3,7 @@
 # depends	    : qt6-serialport
 
 name=qt6-serialbus
-version=6.6.0
+version=6.6.1
 release=1
 source="$name-$version.tar.xz::https://download.qt.io/official_releases/qt/${version%.*}/$version/submodules/qtserialbus-everywhere-src-$version.tar.xz"
 
@@ -11,7 +11,7 @@ build() {
 
 
 	cmake -S qtserialbus-everywhere-src-$version -B build -G Ninja \
-		-D QT_USE_CCACHE=ON \
+		-D QT_USE_CCACHE=$(scratch isinstalled ccache && echo ON || echo OFF) \
 		-D INSTALL_PUBLICBINDIR=usr/bin \
 		-D CMAKE_BUILD_TYPE=Release \
 		-D CMAKE_CXX_FLAGS_RELEASE="$CXXFLAGS" \