diff --git a/.gitea/workflows/autograde.yml b/.gitea/workflows/autograde.yml
index 7ca8cdc..85837c8 100644
--- a/.gitea/workflows/autograde.yml
+++ b/.gitea/workflows/autograde.yml
@@ -125,13 +125,14 @@ jobs:
           
           # 尝试使用课程主组织获取测试仓库
           # 如果测试仓库在学生组织中不存在，可能在课程组织中
-          POTENTIAL_ORGS=("vibevault-course" "course-assets" "vibevault-main" "final-vibevault")
+          # 使用空格分隔的字符串替代bash数组，以提高兼容性
+          POTENTIAL_ORGS="vibevault-course course-assets vibevault-main final-vibevault"
           
           # 直接使用正确的测试仓库名
           ASSIGNMENT_ID="final-vibevault"
           
           # 尝试从多个可能的组织中克隆测试仓库
-          for COURSE_ORG in "${POTENTIAL_ORGS[@]}"; do
+          for COURSE_ORG in $POTENTIAL_ORGS; do
             echo "📥 Trying to fetch tests from ${COURSE_ORG}/${ASSIGNMENT_ID}-tests..."
             
             AUTH_URL="http://${TESTS_USERNAME}:${TESTS_TOKEN}@${HOST}/${COURSE_ORG}/${ASSIGNMENT_ID}-tests.git"