diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 286c7d6..b759f09 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -28,15 +28,6 @@ jobs:
     outputs:
       is_release_build: ${{ env.RELEASE_BUILD == '1' }}
     steps:
-      - name: Installer list
-        run: |
-          tee pylon-installer.txt <<"EOF"
-          ${PYLON_DOWNLOAD_URL_BASE_7_4}pylon_7.4.0.14900_linux_x86_64_setup.tar.gz
-          ${PYLON_DOWNLOAD_URL_BASE_7_4}pylon_7.4.0.14900_linux_aarch64_setup.tar.gz
-          ${PYLON_DOWNLOAD_URL_BASE}pylon_6.2.0.21487_armhf_setup.tar.gz
-          ${PYLON_DOWNLOAD_URL_BASE}pylon_7_3_1_0011.dmg
-          ${PYLON_DOWNLOAD_URL_BASE}basler_pylon_7_4_0_14900.exe
-          EOF
       - uses: actions/cache@v3
         id: cache
         with:
@@ -47,19 +38,46 @@ jobs:
         if: steps.cache.outputs.cache-hit != 'true'
         env:
           PYLON_DOWNLOAD_URL_BASE: ${{ secrets.PYLON_DOWNLOAD_URL_BASE }}
-          PYLON_DOWNLOAD_URL_BASE_6_2: ${{ secrets.PYLON_DOWNLOAD_URL_BASE_6_2 }}
-          PYLON_DOWNLOAD_URL_BASE_6_3: ${{ secrets.PYLON_DOWNLOAD_URL_BASE_6_3 }}
           PYLON_DOWNLOAD_URL_BASE_7_4: ${{ secrets.PYLON_DOWNLOAD_URL_BASE_7_4 }}
-          PYLON_DOWNLOAD_ARM64_URL_BASE: ${{ secrets.PYLON_DOWNLOAD_ARM64_URL_BASE }}
         run: |
           mkdir pylon-installer && cd pylon-installer
-          while read line; do
-            url=$(eval echo "$line")
-            echo "download $url"
-            curl -sSfL -O "$url"
-          done <../pylon-installer.txt
-          echo "Download result"
-          ls -l
+          URLS=(
+              "${PYLON_DOWNLOAD_URL_BASE_7_4}pylon-7.4.0.14900_linux-x86_64_setup.tar.gz     ${PYLON_DOWNLOAD_URL_BASE_7_4}pylon_7.4.0.14900_linux_x86_64_setup.tar.gz "
+              "${PYLON_DOWNLOAD_URL_BASE_7_4}pylon_7_4_0_14900_linux_aarch64_setup.tar.gz    ${PYLON_DOWNLOAD_URL_BASE_7_4}pylon-7.4.0.14900_linux-aarch64_setup.tar.gz"
+              "${PYLON_DOWNLOAD_URL_BASE}pylon_6.2.0.21487_armhf_setup.tar.gz                ${PYLON_DOWNLOAD_URL_BASE}pylon-6.2.0.21487-armhf_setup.tar.gz"
+              "${PYLON_DOWNLOAD_URL_BASE}pylon_7_3_1_0011.dmg"
+              "${PYLON_DOWNLOAD_URL_BASE}basler_pylon_7_4_0_14900.exe"
+          )
+
+          download_file() {
+              local url="$1"
+              local filename="${url##*/}"
+              wget -q "$url" -O "$filename"
+              if [ $? -ne 0 ]; then
+                  echo "Error downloading $filename"
+                  return 1
+              fi
+          }
+
+          # Iterate through the list of possible download URLs
+          for sublist in "${URLS[@]}"; do
+              success=false
+              # Split the sublist into individual URLs
+              read -ra urls <<< "$sublist"
+              for url in "${urls[@]}"; do
+                  download_file "$url"
+                  if [ $? -eq 0 ]; then
+                      echo "Downloaded $url"
+                      success=true
+                      break  # Successfully downloaded, move to the next sublist
+                  fi
+              done
+              if [ "$success" = false ]; then
+                  echo "None of the URLs were successfully downloaded."
+                  exit 1
+              fi
+          done
+          echo "All files downloaded successfully!"
           md5sum *
 
       - uses: actions/upload-artifact@v3