diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index 5a574e71..3bb11836 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -8,8 +8,12 @@ on:
 
 jobs:
   install:
+    strategy:
+      matrix:
+        runner:
+          - ubuntu-latest
     name: test action
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v4
       - uses: kayac/ecspresso@v0
@@ -56,3 +60,28 @@ jobs:
           version: v2.0.4
       - run: |
           ecspresso version 2>&1 | fgrep v2.0.4
+
+  install_on_arm:
+    strategy:
+      matrix:
+        runner:
+          - buildjet-2vcpu-ubuntu-2204-arm
+    name: test action
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: kayac/ecspresso@v2-action-testing
+        with:
+          version: latest
+      - run: |
+          ecspresso version 2>&1 | fgrep v2.
+      - uses: kayac/ecspresso@v2-action-testing
+        with:
+          version: v2.0.4
+      - run: |
+          ecspresso version 2>&1 | fgrep v2.0.4
+      - uses: kayac/ecspresso@v2-action-testing
+        with:
+          version-file: tests/.ecspresso-version
+      - run: |
+          ecspresso version 2>&1 | fgrep v2.0.0
diff --git a/action.yml b/action.yml
index 916255f9..182eadd5 100644
--- a/action.yml
+++ b/action.yml
@@ -18,19 +18,34 @@ runs:
         github_token: ${{ inputs.github-token }}
       run: |
         set -e
+        ARCH=$(uname -m)
+        if [ "${ARCH}" = "x86_64" ]; then
+          GOARCH="amd64"
+        elif [ "${ARCH}" = "aarch64" ]; then
+          GOARCH="arm64"
+        else
+          echo "Unsupported architecture: ${ARCH}"
+          exit 1
+        fi
+
         VERSION="${{ inputs.version }}"
         if [ -n "${{ inputs.version-file }}" ]; then
           VERSION="v$(cat ${{ inputs.version-file }})"
         fi
+
+        echo "VERSION=${VERSION} GOARCH=${GOARCH}"
+
         api_request_args=("-sS")
         if [[ -n "$github_token" ]]; then
           api_request_args=("${api_request_args[@]}" -H "authorization: token $github_token")
         fi
         if [ "${VERSION}" = "latest" ]; then
-          DOWNLOAD_URL=$(curl "${api_request_args[@]}" https://api.github.com/repos/kayac/ecspresso/releases | jq -r '[.[]|select(.tag_name > "v2.0")|select(.prerelease==false)][0].assets[].browser_download_url|select(match("linux.amd64."))')
+          DOWNLOAD_URL=$(curl "${api_request_args[@]}" https://api.github.com/repos/kayac/ecspresso/releases \
+            | jq --arg matcher "linux.${GOARCH}." -r '[.[]|select(.tag_name > "v2.0")|select(.prerelease==false)][0].assets[].browser_download_url|select(match($matcher))')
         else
-          DOWNLOAD_URL=https://github.com/kayac/ecspresso/releases/download/${VERSION}/ecspresso_${VERSION:1}_linux_amd64.tar.gz
+          DOWNLOAD_URL=https://github.com/kayac/ecspresso/releases/download/${VERSION}/ecspresso_${VERSION:1}_linux_${GOARCH}.tar.gz
         fi
+        echo "DOWNLOAD_URL=${DOWNLOAD_URL}"
         mkdir -p ${RUNNER_TOOL_CACHE}/ecspresso
         cd /tmp
         curl -sfLO ${DOWNLOAD_URL}