diff --git a/Dockerfile b/Dockerfile
index bd7a6fc..5d45f29 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,8 @@
-# Build stage - use pre-built mdbook
-FROM peaceiris/mdbook:v0.4.40 AS builder
+# Build stage
+FROM alpine:3.19 AS builder
+
+RUN apk add --no-cache curl tar
+RUN curl -sSL https://github.com/rust-lang/mdBook/releases/download/v0.4.40/mdbook-v0.4.40-x86_64-unknown-linux-musl.tar.gz | tar -xz -C /usr/local/bin
 
 WORKDIR /book
 COPY book.toml .