diff --git a/build/scripts/setup/script.d/03-setup-casaos.sh b/build/scripts/setup/script.d/03-setup-casaos.sh
index 6b4fad1..2a96d35 100755
--- a/build/scripts/setup/script.d/03-setup-casaos.sh
+++ b/build/scripts/setup/script.d/03-setup-casaos.sh
@@ -45,7 +45,7 @@ SETUP_SCRIPT_FILEPATH="${SETUP_SCRIPT_DIRECTORY}/${SETUP_SCRIPT_FILENAME}"
 
 {
     echo "🟩 Running ${SETUP_SCRIPT_FILENAME}..."
-    $SHELL "${SETUP_SCRIPT_FILEPATH}" "${BUILD_PATH}"
+    $BASH "${SETUP_SCRIPT_FILEPATH}" "${BUILD_PATH}"
 } || {
     echo "🟥 ${SETUP_SCRIPT_FILENAME} failed."
     exit 1
diff --git a/build/sysroot/usr/share/casaos/cleanup/script.d/03-cleanup-casaos.sh b/build/sysroot/usr/share/casaos/cleanup/script.d/03-cleanup-casaos.sh
index ce29b6d..ba57bb0 100755
--- a/build/sysroot/usr/share/casaos/cleanup/script.d/03-cleanup-casaos.sh
+++ b/build/sysroot/usr/share/casaos/cleanup/script.d/03-cleanup-casaos.sh
@@ -43,4 +43,4 @@ readonly SETUP_SCRIPT_FILENAME="cleanup-${APP_NAME_SHORT}.sh"
 readonly SETUP_SCRIPT_FILEPATH="${SETUP_SCRIPT_DIRECTORY}/${SETUP_SCRIPT_FILENAME}"
 
 echo "🟩 Running ${SETUP_SCRIPT_FILENAME}..."
-$SHELL "${SETUP_SCRIPT_FILEPATH}" "${BUILD_PATH}"
+$BASH "${SETUP_SCRIPT_FILEPATH}" "${BUILD_PATH}"