diff --git a/.github/workflows/buildPi4.yml b/.github/workflows/buildPi4.yml
new file mode 100644
index 0000000..cbf6c59
--- /dev/null
+++ b/.github/workflows/buildPi4.yml
@@ -0,0 +1,69 @@
+name: build Pi4
+
+# Controls when the action will run. 
+# Triggers the workflow on push or pull request events but only for the master branch
+# Allows you to run this workflow manually from the Actions tab
+on: [push, pull_request, workflow_dispatch]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        PLATFORM: [pi]
+        DISTRO: [bullseye]
+    env:
+      CLOUDSMITH_API_KEY: ${{ secrets.CLOUDSMITH_API_KEY }}
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 10
+     
+      - name: Install depencies
+        run: |
+          sudo apt update
+          sudo apt install bc bison ccache gcc-arm-linux-gnueabihf fakeroot flex git kmod libelf-dev libssl-dev make python3-pip ruby
+          sudo gem install --no-document fpm
+          sudo pip3 install --upgrade cloudsmith-cli
+                
+      - name: Setup env
+        run: |
+          ccache --set-config=compiler_check=content && ccache --set-config=hash_dir=false
+          echo "DT=$(date +'%Y-%m-%d_%H%M')" >> $GITHUB_ENV
+          echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
+      
+      - name: Setup cache
+        id: cache
+        uses: actions/cache@v2
+        with:
+          path: ~/.ccache
+          key: ${{ runner.os }}-ccache
+          restore-keys: |
+            ${{ runner.os }}-ccache
+            ${{ runner.os }}-ccache-
+            
+      - name: Build ${{ matrix.PLATFORM }} ${{ matrix.DISTRO }} true
+        run: |
+          export PATH=/usr/lib/ccache:$PATH
+          bash buildwithlog.sh ${{ matrix.PLATFORM }} ${{ matrix.DISTRO }} ONLINE
+          
+      - name: Compose release filename
+        # https://stackoverflow.com/questions/58033366/how-to-get-current-branch-within-github-actions
+        run: echo "artifact_name=ohd-kernel-${{ matrix.PLATFORM }}-${{ matrix.DISTRO }}-${GITHUB_REF##*/}" >> $GITHUB_ENV
+        
+      - name: Package firmware ${{ matrix.PLATFORM }} ${{ matrix.DISTRO }}
+        uses: 'actions/upload-artifact@v2'
+        with:
+          name: "${{ env.artifact_name }}"
+          path: |
+            *.deb
+            *.log
+          if-no-files-found: error
+     
diff --git a/build.sh b/build.sh
index 3badc93..b8acfbd 100755
--- a/build.sh
+++ b/build.sh
@@ -1,7 +1,8 @@
 #!/bin/bash
 PLATFORM=$1
 DISTRO=$2
-ONLINE=$3
+PI4=$3
+ONLINE=$4
 
 if  [[ "${PLATFORM}" != "pi" ]] && [[ "${PLATFORM}" != "jetson" ]];  then
     echo "Usage: ./build.sh pi bullseye"
@@ -306,15 +307,16 @@ set -x
 
         #echo "Set Overlays"
 
-    # source $SRC_DIR/kernels/${PLATFORM}-${DISTRO}-v7
-    # prepare_build
-    # build_pi_kernel
-	# echo "Copy kernel7"
-	# pushd ${LINUX_DIR}
-	# ls -a
-	#  cp arch/arm/boot/zImage "${PACKAGE_DIR}/usr/local/share/openhd/kernel/kernel7.img" || exit 1
-
+    if [[ "${PI4}" == "true" ]]; then
+    source $SRC_DIR/kernels/${PLATFORM}-${DISTRO}-v7
+    prepare_build
+    build_pi_kernel
+	echo "Copy kernel7"
+	pushd ${LINUX_DIR}
+	ls -a
+	 cp arch/arm/boot/zImage "${PACKAGE_DIR}/usr/local/share/openhd/kernel/kernel7.img" || exit 1
 
+    else
      source $SRC_DIR/kernels/${PLATFORM}-${DISTRO}-v7l
      prepare_build
      build_pi_kernel
@@ -323,7 +325,7 @@ set -x
 	 ls -a
       cp arch/arm/boot/zImage "${PACKAGE_DIR}/usr/local/share/openhd/kernel/kernel7l.img" || exit 1
 
-
+    fi
 fi
 
 if [[ "${PLATFORM}" == "jetson" ]]; then
diff --git a/kernels/pi-bullseye-v7 b/kernels/pi-bullseye-v7
index 9b947f5..cfc4b99 100644
--- a/kernels/pi-bullseye-v7
+++ b/kernels/pi-bullseye-v7
@@ -1,5 +1,5 @@
 KERNEL=kernel7
 KERNEL_BRANCH="rpi-6.1.y"
-KERNEL_VERSION="6.1.55-v7+"
+KERNEL_VERSION="6.1.74-v7+"
 KERNEL_COMMIT="20cb6d7b533b5e6d7df8a2cb7a83bd4555834bde"
 ISA=v7
diff --git a/kernels/pi-bullseye-v7l b/kernels/pi-bullseye-v7l
index 2373431..4d8a830 100644
--- a/kernels/pi-bullseye-v7l
+++ b/kernels/pi-bullseye-v7l
@@ -1,5 +1,5 @@
 KERNEL=kernel7l
 KERNEL_BRANCH="rpi-6.1.y"
-KERNEL_VERSION="6.1.55-v7l+"
+KERNEL_VERSION="6.1.74-v7l+"
 KERNEL_COMMIT="20cb6d7b533b5e6d7df8a2cb7a83bd4555834bde"
 ISA=v7l
diff --git a/scripts/common.sh b/scripts/common.sh
index 34ac0a0..4ebd823 100644
--- a/scripts/common.sh
+++ b/scripts/common.sh
@@ -24,11 +24,17 @@ function package() {
     rm ${PACKAGE_NAME}_${VERSION}_${PACKAGE_ARCH}.deb >/dev/null 2>&1
     if [[ "${PLATFORM}" == "pi" ]]; then
         cd ${SRC_DIR}
-        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.55-v7+/source
-        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.55-v7+/build
-        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.55-v7l+/source
-        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.55-v7l+/build
-        fpm -a ${PACKAGE_ARCH} -s dir -t deb -n ${PACKAGE_NAME} -v ${VERSION} -C ${PACKAGE_DIR} \
+        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.74-v7+/source
+        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.74-v7+/build
+        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.74-v7l+/source
+        rm -Rf ${PACKAGE_DIR}/lib/modules/6.1.74-v7l+/build
+        if [[ "${PI4}" == "true" ]]; then
+        fpm -a ${PACKAGE_ARCH} -s dir -t deb -n ${PACKAGE_NAME}-v7l -v ${VERSION} -C ${PACKAGE_DIR} \
+            --after-install after-install.sh \
+            --before-install before-install.sh \
+            -p ${PACKAGE_NAME}_VERSION_ARCH.deb || exit 1
+        else
+        fpm -a ${PACKAGE_ARCH} -s dir -t deb -n ${PACKAGE_NAME}-v7 -v ${VERSION} -C ${PACKAGE_DIR} \
             --after-install after-install.sh \
             --before-install before-install.sh \
             -p ${PACKAGE_NAME}_VERSION_ARCH.deb || exit 1