diff --git a/scripts/tools/snapshot.sh b/scripts/tools/snapshot.sh
index c52ca30c..860d7b68 100644
--- a/scripts/tools/snapshot.sh
+++ b/scripts/tools/snapshot.sh
@@ -131,7 +131,7 @@ do_backup() {
     # Services PostgreSQL
     if docker ps --format '{{.Names}}' | grep -q "^${SERVICES_POSTGRES_CONTAINER}$"; then
         log_info "导出 Services PostgreSQL..."
-        if docker exec "$SERVICES_POSTGRES_CONTAINER" pg_dumpall -U postgres > "$backup_dir/services_postgres_dump.sql" 2>>"$log_file"; then
+        if docker exec "$SERVICES_POSTGRES_CONTAINER" pg_dumpall -U rwa_user > "$backup_dir/services_postgres_dump.sql" 2>>"$log_file"; then
             log_info "✓ Services PostgreSQL 导出完成 ($(du -h "$backup_dir/services_postgres_dump.sql" | cut -f1))"
         else
             log_warn "Services PostgreSQL 导出失败"
@@ -259,7 +259,7 @@ $(ls -lh "$backup_dir" | tail -n +2)
 ./snapshot.sh restore $backup_dir
 
 # 或手动恢复 PostgreSQL
-docker exec -i $SERVICES_POSTGRES_CONTAINER psql -U postgres < $backup_dir/services_postgres_dump.sql
+docker exec -i $SERVICES_POSTGRES_CONTAINER psql -U rwa_user < $backup_dir/services_postgres_dump.sql
 docker exec -i $MPC_POSTGRES_CONTAINER psql -U postgres < $backup_dir/mpc_postgres_dump.sql
 
 ===========================================
@@ -350,7 +350,7 @@ restore_postgres() {
     if [ -f "$backup_dir/services_postgres_dump.sql" ]; then
         if docker ps --format '{{.Names}}' | grep -q "^${SERVICES_POSTGRES_CONTAINER}$"; then
             log_info "恢复 Services PostgreSQL..."
-            if docker exec -i "$SERVICES_POSTGRES_CONTAINER" psql -U postgres < "$backup_dir/services_postgres_dump.sql" 2>/dev/null; then
+            if docker exec -i "$SERVICES_POSTGRES_CONTAINER" psql -U rwa_user < "$backup_dir/services_postgres_dump.sql" 2>/dev/null; then
                 log_info "✓ Services PostgreSQL 恢复完成"
             else
                 log_warn "Services PostgreSQL 恢复可能有警告（通常是正常的）"
@@ -490,7 +490,7 @@ restore_selective() {
                 "services_postgres")
                     if docker ps --format '{{.Names}}' | grep -q "^${SERVICES_POSTGRES_CONTAINER}$"; then
                         log_info "恢复 Services PostgreSQL..."
-                        docker exec -i "$SERVICES_POSTGRES_CONTAINER" psql -U postgres < "$backup_dir/services_postgres_dump.sql" 2>/dev/null || true
+                        docker exec -i "$SERVICES_POSTGRES_CONTAINER" psql -U rwa_user < "$backup_dir/services_postgres_dump.sql" 2>/dev/null || true
                         log_info "✓ Services PostgreSQL 恢复完成"
                     else
                         log_warn "容器未运行"