diff --git a/Dockerfile b/Dockerfile
index d9a6cb6..a672881 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,8 @@ RUN git clone -n --depth=1 --filter=tree:0 https://github.com/misskey-dev/misske
     cd misskey && \
     git sparse-checkout set --no-cone packages/backend packages/misskey-js packages/misskey-reversi packages/meta.json .config/ && \
     git checkout
-RUN cd /misskey/packages/misskey-reversi && yarn --dev && yarn build && \
+RUN yarn config set network-timeout 300000 && \
+    cd /misskey/packages/misskey-reversi && yarn --dev && yarn build && \
     cd ../misskey-js && yarn --dev && yarn build && \
     cd ../backend && yarn add ../misskey-reversi ../misskey-js && yarn --dev && yarn build