diff --git a/docker/Dockerfile.openwrt b/docker/Dockerfile.openwrt
index a2ec1a9..71ab765 100644
--- a/docker/Dockerfile.openwrt
+++ b/docker/Dockerfile.openwrt
@@ -17,7 +17,8 @@ RUN curl -o /tmp/${NAME} ${SDK_URL} \
 
 RUN apk add --no-cache perl make git bash gawk gcc g++ ncurses-dev
 WORKDIR ${SDK_PATH}
-RUN ./scripts/feeds update base packages
+RUN git config –-global http.postBuffer 524288000 \
+    && ./scripts/feeds update base packages
 RUN ./scripts/feeds install libpcap libuv
 
 RUN mkdir ./package/switch-lan-play