diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index d436dce..6484936 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -21,8 +21,8 @@ jobs:
           zsh install.sh || { echo "The script exited with an error."; exit 1; }
           echo "The script executed successfully."
           ZSHRC_PATH="${HOME}/.zshrc"
-          source ${ZSHRC_PATH}
-          UPDATE_ALIAS_SEARCH_STR="curl -fsSL https://raw.githubusercontent.com/andmpel/MacOS-All-In-One-Update-Script/HEAD/update-all.sh | ${SHELL}"
+          cat ${ZSHRC_PATH}
+          UPDATE_ALIAS_SEARCH_STR="curl -fsSL https://raw.githubusercontent.com/andmpel/MacOS-All-In-One-Update-Script/HEAD/update-all.sh | zsh"
           if ! grep -qxF "${UPDATE_ALIAS_SEARCH_STR}" "${ZSHRC_PATH}"; then
             echo "Error: Test Failed!!!"
             exit 1
diff --git a/install.sh b/install.sh
index 9cea4f4..a8c16c6 100755
--- a/install.sh
+++ b/install.sh
@@ -16,7 +16,7 @@ set -e
 
 readonly FILE_NAME="update-all.sh"
 readonly UPDATE_SCRIPT_SOURCE_URL="https://raw.githubusercontent.com/andmpel/MacOS-All-In-One-Update-Script/HEAD/${FILE_NAME}"
-readonly UPDATE_ALIAS_SEARCH_STR="curl -fsSL ${UPDATE_SCRIPT_SOURCE_URL} | ${SHELL}"
+readonly UPDATE_ALIAS_SEARCH_STR="curl -fsSL ${UPDATE_SCRIPT_SOURCE_URL} | zsh"
 
 UPDATE_ALIAS_SOURCE_STR=$(
     cat <<EOF