diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c409400..e1919f0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,8 +13,8 @@ env:
 jobs:
 
   #========================================================================
-  debian11_qhttpserver:
-    name: "Build the package for Debian 11"
+  debian12_qhttpserver:
+    name: "Build the package for Debian 12"
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
@@ -33,12 +33,12 @@ jobs:
           large-packages: false
           swap-storage: true
       - name: Build image
-        run: docker build -f ./Dockerfile-debian11 -t aymara/qhttpserver-debian11:build .
+        run: docker build -f ./Dockerfile-debian12 -t aymara/qhttpserver-debian12:build .
       - name: Extract package and version number from docker image
         id: extract
         shell: bash
         run: |
-             dockerImage="aymara/qhttpserver-debian11:build" 
+             dockerImage="aymara/qhttpserver-debian12:build"
              packageDir="/usr/share/apps/qhttpserver/packages/"
              cicd/extract_package.sh $dockerImage $packageDir $GITHUB_OUTPUT
       - name: Upload nightly build package
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3fdd450..7753e0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,9 +91,9 @@ set(CMAKE_PREFIX_PATH
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -lpthread")
 
-# It is necessary to define Qt5_INSTALL_DIR in your environment.
+# It is necessary to define Qt6_INSTALL_DIR in your environment.
 set(CMAKE_PREFIX_PATH  
-  "$ENV{Qt5_INSTALL_DIR}"
+  "$ENV{Qt6_INSTALL_DIR}"
   "${CMAKE_PREFIX_PATH}" 
 )
 
@@ -108,15 +108,15 @@ endif()
 
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_AUTOMOC ON)
-find_package(Qt5 REQUIRED COMPONENTS Core Network)
-set(Qt5_LIBRARIES  Qt5::Core Qt5::Network )
-message("Found Qt5 ${Qt5Core_VERSION}")
+find_package(Qt6 REQUIRED COMPONENTS Core Network)
+set(Qt6_LIBRARIES  Qt6::Core Qt6::Network )
+message("Found Qt6 ${Qt6Core_VERSION}")
 
-message("\n\n\n{Qt5_LIBRARIES}=${Qt5_LIBRARIES} ")
+message("\n\n\n{Qt6_LIBRARIES}=${Qt6_LIBRARIES} ")
 
 if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
-  get_target_property(QtCore_location Qt5::Core LOCATION)
-  get_target_property(QtNetwork_location Qt5::Network LOCATION)
+  get_target_property(QtCore_location Qt6::Core LOCATION)
+  get_target_property(QtNetwork_location Qt6::Network LOCATION)
   install(FILES ${QtCore_location}
                 ${QtNetwork_location}
           DESTINATION ${LIB_INSTALL_DIR})
diff --git a/Dockerfile-debian12 b/Dockerfile-debian12
new file mode 100644
index 0000000..52e95eb
--- /dev/null
+++ b/Dockerfile-debian12
@@ -0,0 +1,24 @@
+FROM debian:12
+
+ARG TRAVIS_JOB_NUMBER
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Setup
+RUN apt-get update -y -qq && apt-get install -y apt-utils wget bzip2 git gcc g++ cmake cmake-data ninja-build qt6-base-dev-tools qt6-declarative-dev packaging-dev -qq
+RUN mkdir -p /src/
+RUN git clone https://github.com/aymara/qhttpserver /src/qhttpserver
+
+RUN mkdir -p /src/qhttpserver/build
+ 
+# Build
+WORKDIR /src/qhttpserver/build
+RUN cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release ..
+RUN ninja all && ninja package
+RUN echo "export packagefile=`find /src/qhttpserver/build/ -maxdepth 1 -name *.deb`" > /envfile
+RUN echo "export fullname=\$(basename -- \$packagefile)" >> /envfile
+RUN echo "export extension=\${fullname##*.}" >> /envfile
+RUN echo "export filename=\${fullname%.*}" >> /envfile
+RUN . /envfile && install -D ${packagefile} "/usr/share/apps/qhttpserver/packages/${filename}-debian11.deb"
+
+## install github-release to be able to deploy packages
+#RUN wget https://github.com/aktau/github-release/releases/download/v0.7.2/linux-amd64-github-release.tar.bz2 && tar xjf linux-amd64-github-release.tar.bz2 && cp bin/linux/amd64/github-release /usr/bin
diff --git a/Dockerfile-ubuntu22.04 b/Dockerfile-ubuntu22.04
index 0cefad9..583ca6c 100644
--- a/Dockerfile-ubuntu22.04
+++ b/Dockerfile-ubuntu22.04
@@ -3,8 +3,7 @@ FROM ubuntu:22.04
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Setup
-RUN apt-get update -y -qq
-RUN apt-get install -y apt-utils wget bzip2 git gcc g++ cmake cmake-data ninja-build qtbase5-dev-tools qtdeclarative5-dev packaging-dev -qq
+RUN apt-get update -y -qq && apt-get install -y apt-utils wget bzip2 git gcc g++ cmake cmake-data ninja-build qt6-base-dev-tools qt6-declarative-dev packaging-dev -qq
 RUN mkdir -p /src/
 RUN git clone https://github.com/aymara/qhttpserver /src/qhttpserver