diff --git a/.env.example b/.env.example
index 25671ee..cefbed0 100644
--- a/.env.example
+++ b/.env.example
@@ -94,7 +94,7 @@ REDIS_PORT=6379
 # 8. 沙箱配置 (验证器)
 # =============================================
 SANDBOX_ENABLED=true
-SANDBOX_IMAGE=deepaudit/sandbox:latest
+SANDBOX_IMAGE=code-review:sandbox
 SANDBOX_MEMORY_LIMIT=512m
 SANDBOX_CPU_LIMIT=1.0
 SANDBOX_NETWORK_DISABLED=true