diff --git a/.bazelrc b/.bazelrc
index 5c70e99..671c2df 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -28,6 +28,11 @@ common:windows --experimental_repository_downloader_retries=10
 build --verbose_failures
 test --test_output=errors
 
+# GCS remote caching config (Linux-only, active by default on Linux)
+build:linux --remote_cache=https://storage.googleapis.com/linux-cel-python-remote-cache
+build:linux --google_default_credentials=true
+build:linux --remote_upload_local_results=false
+
 # GCS remote caching config (Windows-only, active by default on Windows!)
 build:windows --remote_cache=https://storage.googleapis.com/windows-cel-python-remote-cache
 build:windows --google_default_credentials=true
diff --git a/release/kokoro/release_linux.sh b/release/kokoro/release_linux.sh
index 5292ef6..64a1d44 100755
--- a/release/kokoro/release_linux.sh
+++ b/release/kokoro/release_linux.sh
@@ -19,8 +19,14 @@ set -e
 export VIRTUALENV_NO_DOWNLOAD=1
 export PIP_DISABLE_PIP_VERSION_CHECK=1
 
+if [ "$(uname -m)" = "aarch64" ]; then
+  export CIBW_ARCHS="aarch64"
+else
+  export CIBW_ARCHS="x86_64"
+fi
+
 # Pass these environment variables to the cibuildwheel Docker container
-export CIBW_ENVIRONMENT="VIRTUALENV_NO_DOWNLOAD=1 PIP_DISABLE_PIP_VERSION_CHECK=1"
+export CIBW_ENVIRONMENT="VIRTUALENV_NO_DOWNLOAD=1 PIP_DISABLE_PIP_VERSION_CHECK=1 PIP_DEFAULT_TIMEOUT=120"
 export CIBW_DEPENDENCY_VERSIONS="latest"
 export CIBW_CONTAINER_ENGINE_EXTRA_ARGS="--network=host"
 
@@ -203,13 +209,30 @@ rm -rf cel_expr_python/*_test.py
 
 echo "Downloading bazelisk on host..."
 curl -LO https://github.com/bazelbuild/bazelisk/releases/download/v1.19.0/bazelisk-linux-amd64
-chmod +x bazelisk-linux-amd64
+curl -LO https://github.com/bazelbuild/bazelisk/releases/download/v1.19.0/bazelisk-linux-arm64
+chmod +x bazelisk-linux-amd64 bazelisk-linux-arm64
+
+echo "Downloading build dependencies on host..."
+mkdir -p build_deps
+pip download --only-binary=:all: --dest build_deps "setuptools>=40.8.0" "wheel"
+if [ "$(uname -m)" = "aarch64" ]; then
+  PLATFORM_SUFFIX="aarch64"
+else
+  PLATFORM_SUFFIX="x86_64"
+fi
+pip download --only-binary=:all: --dest build_deps --python-version 3.9 --platform "manylinux2014_${PLATFORM_SUFFIX}" "virtualenv"
 
 # Check if pyproject.toml exists before running sed
 if [ -f pyproject.toml ]; then
   sed -i "" "s/\$VERSION/${VERSION}/g" pyproject.toml || sed -i "s/\$VERSION/${VERSION}/g" pyproject.toml
 fi
 
+# Register QEMU for arm64 emulation if not on arm64 host
+if [ "$(uname -m)" != "aarch64" ]; then
+  echo "Registering QEMU binfmt handlers..."
+  docker run --privileged --rm mirror.gcr.io/tonistiigi/binfmt --install arm64
+fi
+
 echo "Running cibuildwheel..."
 # Default CIBWHEEL_BIN if not set
 if [ -z "${CIBWHEEL_BIN}" ]; then
diff --git a/release/pyproject.toml b/release/pyproject.toml
index c6b322a..d7aa211 100644
--- a/release/pyproject.toml
+++ b/release/pyproject.toml
@@ -44,14 +44,18 @@ test-command = "python {project}/cel_basic_test.py"
 build-verbosity = 1
 
 [tool.cibuildwheel.linux]
+build-frontend = { name = "pip", args = ["--no-build-isolation"] }
+before-build = "pip install --no-index --find-links={project}/build_deps setuptools wheel virtualenv"
+archs = ["x86_64", "aarch64"]
 manylinux-x86_64-image = "manylinux_2_28"
+manylinux-aarch64-image = "manylinux_2_28"
 container-engine = "docker; disable_host_mount: True"
 # Google's internal Kokoro/RBE network uses a secure MITM proxy that resigns HTTPS
 # traffic with an internal Google CA. Since the public manylinux container does not
 # trust this CA, git fetches for external dependencies (like @cel-cpp) will fail
 # with SSL certificate errors. We disable http.sslVerify inside the container to
 # bypass this and allow Bazel to fetch SCM dependencies through the proxy.
-before-all = "git config --global http.sslVerify false && echo 'Installing bazelisk' && cp {project}/bazelisk-linux-amd64 /usr/local/bin/bazel"
+before-all = "git config --global http.sslVerify false && echo 'Installing bazelisk' && if [ $(uname -m) = 'aarch64' ]; then cp {project}/bazelisk-linux-arm64 /usr/local/bin/bazel; else cp {project}/bazelisk-linux-amd64 /usr/local/bin/bazel; fi && python3 -m pip install --no-index --find-links={project}/build_deps virtualenv"
 
 [tool.cibuildwheel.macos]
 archs = ["x86_64", "arm64"]