diff --git a/Dockerfile b/Dockerfile
index 13909e64ba..635e521f07 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,7 @@ COPY --link ["packages/misskey-bubble-game/package.json", "./packages/misskey-bu
 
 ARG NODE_ENV=production
 
-RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.bashrc" SHELL="$(which bash)" bash -
+RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -
 
 RUN --mount=type=cache,target=/root/.local/share/pnpm/store,sharing=locked \
 	pnpm i --frozen-lockfile --aggregate-output
@@ -59,7 +59,7 @@ COPY --link ["packages/misskey-bubble-game/package.json", "./packages/misskey-bu
 
 ARG NODE_ENV=production
 
-RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.bashrc" SHELL="$(which bash)" bash -
+RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -
 
 RUN --mount=type=cache,target=/root/.local/share/pnpm/store,sharing=locked \
 	pnpm i --frozen-lockfile --aggregate-output
@@ -86,7 +86,7 @@ WORKDIR /misskey
 # add package.json to add pnpm
 COPY --chown=misskey:misskey ./package.json ./package.json
 
-RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.bashrc" SHELL="$(which bash)" bash -
+RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -
 
 COPY --chown=misskey:misskey --from=target-builder /misskey/node_modules ./node_modules
 COPY --chown=misskey:misskey --from=target-builder /misskey/packages/backend/node_modules ./packages/backend/node_modules