diff --git a/Dockerfile b/Dockerfile
index 3ff4092..2aae2c0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,6 +24,9 @@ COPY static/html static/html
 RUN rm -f /etc/localtime \
     && ln -sv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
     && echo "Asia/Shanghai" > /etc/timezone
+
+# 更新 CA 证书库
+RUN apt-get update && apt-get install -y ca-certificates
 # 在build阶段复制可执行的go二进制文件app
 COPY --from=build /go/release/zyos ./zyos