diff --git a/.github/workflows/build-tor-toolchain-image.yml b/.github/workflows/build-tor-toolchain-image.yml
index 65b26c5..ba9a862 100644
--- a/.github/workflows/build-tor-toolchain-image.yml
+++ b/.github/workflows/build-tor-toolchain-image.yml
@@ -32,6 +32,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
diff --git a/Dockerfile b/Dockerfile
index dc4fdc7..e97ed97 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.23.0 AS builder
+FROM alpine:3.24.1 AS builder
 
 WORKDIR /build
 
@@ -46,7 +46,7 @@ RUN cp ./src/app/tor \
     ./src/config/torrc.sample \
     /build/binaries
 
-FROM alpine:3.23.0 AS tor-toolchain
+FROM alpine:3.24.1 AS tor-toolchain
 
 RUN mkdir -p /usr/local/bin
 
diff --git a/README.md b/README.md
index e3a422f..de35269 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ the binaries.
 It accepts a build parameter called `TOR_VERSION` which corresponds to a Tor
 version, a tag from the official repository :
 `https://gitlab.torproject.org/tpo/core/tor`
-`TOR_VERSION` defaults to `0.4.8.21` if unspecified, as for today, it's the
+`TOR_VERSION` defaults to `0.4.9.9` if unspecified, as for today, it's the
 latest version released.
 
 For easy build, there is a `docker-compose.yml` file which builds everything for