diff --git a/.github/workflows/parallel_build.yaml b/.github/workflows/parallel_build.yaml
index f185c272..311a123f 100644
--- a/.github/workflows/parallel_build.yaml
+++ b/.github/workflows/parallel_build.yaml
@@ -105,7 +105,7 @@ jobs:
           echo "Warning: coprocessor_fw_version.txt not found"
         fi
         
-        7z a -mx=9 -tzip -xr'!.*' framework-arduinoespressif32-${idf_version_string}.zip framework-arduinoespressif32/
+        tar --exclude=.* -Jcf framework-arduinoespressif32-${idf_version_string}.tar.xz framework-arduinoespressif32/
 
     - name: Set tag name
       id: set_tag_name
@@ -121,7 +121,7 @@ jobs:
         body_path: release-info.txt
         prerelease: true
         files: |
-          framework-arduinoespressif32-*.zip
+          framework-arduinoespressif32-*.tar.xz
           release-info.txt
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/tools/archive-build.sh b/tools/archive-build.sh
index 1b8090f3..a4b36285 100755
--- a/tools/archive-build.sh
+++ b/tools/archive-build.sh
@@ -4,7 +4,7 @@ idf_version_string=${IDF_BRANCH//\//_}"-$IDF_COMMIT"
 
 archive_path="dist/arduino-esp32-libs-$TARGET-$idf_version_string.tar.gz"
 build_archive_path="dist/arduino-esp32-build-$TARGET-$idf_version_string.tar.gz"
-pio_archive_path="dist/framework-arduinoespressif32-$TARGET-$idf_version_string.tar.gz"
+pio_archive_path="dist/framework-arduinoespressif32-$TARGET-$idf_version_string.tar.xz"
 pio_zip_archive_path="dist/framework-arduinoespressif32-$TARGET-$idf_version_string.zip"
 
 mkdir -p dist && rm -rf "$archive_path" "$build_archive_path"
@@ -67,5 +67,5 @@ cd ../../../
 
 if [[ -z "$GITHUB_ACTIONS" ]]; then
     echo "Creating PlatformIO Tasmota framework-arduinoespressif32"
-    7z a -mx=9 -tzip -xr'!.*' ../$pio_zip_archive_path framework-arduinoespressif32/
+    tar --exclude=.* -Jcf ../$pio_archive_path framework-arduinoespressif32/
 fi
diff --git a/tools/prepare-ci.sh b/tools/prepare-ci.sh
index d36660dd..2e8e1279 100755
--- a/tools/prepare-ci.sh
+++ b/tools/prepare-ci.sh
@@ -7,13 +7,13 @@ if [[ "$OSTYPE" == "darwin"* ]]; then
     brew install gperf || true
     brew install ninja || true
     brew install ccache || true
-    brew install 7zip || true
+    brew install xz || true
     brew install uv || true
     uv venv
     uv pip install future pyelftools
 else
     echo "Linux detected. Install dependencies..."
-    sudo apt update && sudo apt install -y gperf cmake ninja-build ccache p7zip-full
+    sudo apt update && sudo apt install -y gperf cmake ninja-build ccache xz-utils
     curl -LsSf https://astral.sh/uv/install.sh | sh
     uv venv
     uv pip install future pyelftools