diff --git a/backend/Dockerfile b/backend/Dockerfile
index dd93711..f2bfb1b 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -21,8 +21,9 @@ RUN apk add --no-cache ca-certificates tzdata
 
 WORKDIR /app
 
-# 复制二进制（配置通过 docker-compose env_file 注入）
+# 复制二进制和配置文件（敏感配置通过 docker-compose env_file 注入覆盖）
 COPY --from=builder /camtalk .
+COPY config.yaml .
 
 EXPOSE 8080