diff --git a/Dockerfile b/Dockerfile
index fd0b5e1c9..8db7400c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,6 +23,7 @@ COPY --link ["scripts", "./scripts"]
 COPY --link ["packages/backend/package.json", "./packages/backend/"]
 COPY --link ["packages/frontend/package.json", "./packages/frontend/"]
 COPY --link ["packages/sw/package.json", "./packages/sw/"]
+COPY --link ["packages/misskey-js/package.json", "./packages/misskey-js/"]
 
 RUN --mount=type=cache,target=/root/.local/share/pnpm/store,sharing=locked \
 	pnpm i --frozen-lockfile --aggregate-output