diff --git a/Dockerfile b/Dockerfile
index 660d220..de35a18 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM 11notes/alpine as builder
 
 USER root
 
-RUN apk update && apk add rust ca-certificates musl-dev build-base openssl-dev cargo rustup
+RUN apk update && apk add rust ca-certificates musl-dev build-base openssl-dev cargo && cargo install rustup
 
 WORKDIR /app
 COPY Cargo.toml .