diff --git a/update b/update
index 583a285b..b0bd0af7 100644
--- a/update
+++ b/update
@@ -119,8 +119,8 @@ function install_backend_and_download_resources() {
 if [[ "${MOVIEPILOT_AUTO_UPDATE}" = "true" ]] || [[ "${MOVIEPILOT_AUTO_UPDATE}" = "release" ]] || [[ "${MOVIEPILOT_AUTO_UPDATE}" = "dev" ]]; then
     if [[ -n "${PIP_PROXY}" ]] || [[ -n "${GITHUB_PROXY}" ]]; then
         CURL_OPTIONS="-sL"
-        PIP_OPTIONS=${PIP_OPTIONS:+"-i ${PIP_PROXY}"} || PIP_OPTIONS=""
-        GITHUB_PROXY=${GITHUB_PROXY:+"-i ${GITHUB_PROXY}"} || GITHUB_PROXY=""
+        PIP_OPTIONS=${PIP_PROXY:+-i ${PIP_PROXY}}
+        GITHUB_PROXY=${GITHUB_PROXY:-""}
         # 判断不同的代理组合
         if [ -z "${PIP_OPTIONS}" ] && [ -n "${GITHUB_PROXY}" ]; then
             INFO "不使用代理更新环境依赖，使用Github镜像代理更新程序"