diff --git a/Dockerfile b/Dockerfile
index de35a18..dfb6ec6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,13 +2,13 @@ FROM 11notes/alpine as builder
 
 USER root
 
-RUN apk update && apk add rust ca-certificates musl-dev build-base openssl-dev cargo && cargo install rustup
+RUN apk update && apk add rust ca-certificates musl-dev build-base openssl-dev cargo curl
 
 WORKDIR /app
 COPY Cargo.toml .
 COPY src ./src
 
-RUN ~/.cargo/bin/rustup target add x86_64-unknown-linux-musl
+RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain x86_64-unknown-linux-musl -y
 
 RUN RUSTFLAGS="-Ctarget-feature=+crt-static" cargo build --release --target x86_64-unknown-linux-musl