diff --git a/.github/workflows/ci.generate.ts b/.github/workflows/ci.generate.ts
index 6ee7f75453..f155e8d539 100755
--- a/.github/workflows/ci.generate.ts
+++ b/.github/workflows/ci.generate.ts
@@ -9,6 +9,7 @@ const cacheVersion = 73;
 
 const ubuntuX86Runner = "ubuntu-22.04";
 const ubuntuX86XlRunner = "ubuntu-22.04-xl";
+const ubuntuARMRunner = "ubicloud-standard-16-arm";
 const windowsX86Runner = "windows-2022";
 const windowsX86XlRunner = "windows-2022-xl";
 const macosX86Runner = "macos-12";
@@ -26,6 +27,11 @@ const Runners = {
     runner:
       `\${{ github.repository == 'denoland/deno' && '${ubuntuX86XlRunner}' || '${ubuntuX86Runner}' }}`,
   },
+  linuxArm: {
+    os: "linux",
+    arch: "aarch64",
+    runner: ubuntuARMRunner,
+  },
   macosX86: {
     os: "macos",
     arch: "x86_64",
@@ -399,6 +405,14 @@ const ci = {
             ...Runners.linuxX86,
             job: "lint",
             profile: "debug",
+          }, {
+            ...Runners.linuxArm,
+            job: "test",
+            profile: "debug",
+          }, {
+            ...Runners.linuxArm,
+            job: "test",
+            profile: "release",
           }, {
             ...Runners.macosX86,
             job: "lint",
@@ -456,7 +470,10 @@ const ci = {
           ...installDenoStep,
         },
         ...installPythonSteps.map((s) =>
-          withCondition(s, "matrix.job != 'lint'")
+          withCondition(
+            s,
+            "matrix.job != 'lint' && (matrix.os != 'linux' || matrix.arch != 'aarch64')",
+          )
         ),
         {
           // only necessary for benchmarks
@@ -732,7 +749,7 @@ const ci = {
         {
           name: "Autobahn testsuite",
           if: [
-            "matrix.os == 'linux' &&",
+            "(matrix.os == 'linux' && matrix.arch != 'aarch64') &&",
             "matrix.job == 'test' &&",
             "matrix.profile == 'release' &&",
             "!startsWith(github.ref, 'refs/tags/')",
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a363caef83..84f56c380c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
           git config --global fetch.parallel 32
         if: github.event.pull_request.draft == true
       - name: Clone repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 5
           submodules: false
@@ -111,6 +111,16 @@ jobs:
             runner: ubuntu-22.04
             job: lint
             profile: debug
+          - os: linux
+            arch: aarch64
+            runner: ubicloud-standard-16-arm
+            job: test
+            profile: debug
+          - os: linux
+            arch: aarch64
+            runner: ubicloud-standard-16-arm
+            job: test
+            profile: release
           - os: macos
             arch: x86_64
             runner: macos-12
@@ -133,7 +143,7 @@ jobs:
           git config --global fetch.parallel 32
         if: '!(matrix.skip)'
       - name: Clone repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 5
           submodules: false
@@ -169,9 +179,9 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: 3.11
-        if: '!(matrix.skip) && (matrix.job != ''lint'')'
+        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os != ''linux'' || matrix.arch != ''aarch64''))'
       - name: Remove unused versions of Python
-        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os == ''windows''))'
+        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os != ''linux'' || matrix.arch != ''aarch64'') && (matrix.os == ''windows''))'
         shell: pwsh
         run: |-
           $env:PATH -split ";" |
@@ -184,7 +194,7 @@ jobs:
         with:
           node-version: 18
       - name: Install protoc
-        uses: arduino/setup-protoc@v2
+        uses: arduino/setup-protoc@v3
         with:
           version: '21.12'
           repo-token: '${{ secrets.GITHUB_TOKEN }}'
@@ -331,7 +341,7 @@ jobs:
           fi
         if: '!(matrix.skip)'
       - name: Cache Cargo home
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |-
             ~/.cargo/registry/index
@@ -441,7 +451,7 @@ jobs:
           gsutil -h "Cache-Control: no-cache" cp canary-latest.txt gs://dl.deno.land/canary-$(rustc -vV | sed -n "s|host: ||p")-latest.txt
       - name: Autobahn testsuite
         if: |-
-          !(matrix.skip) && (matrix.os == 'linux' &&
+          !(matrix.skip) && ((matrix.os == 'linux' && matrix.arch != 'aarch64') &&
           matrix.job == 'test' &&
           matrix.profile == 'release' &&
           !startsWith(github.ref, 'refs/tags/'))
@@ -622,7 +632,7 @@ jobs:
           body_path: target/release/release-notes.md
           draft: true
       - name: Save cache build output (main)
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         if: '!(matrix.skip) && ((matrix.job == ''test'' || matrix.job == ''lint'') && github.ref == ''refs/heads/main'')'
         with:
           path: |-
diff --git a/test_ffi/tests/test.js b/test_ffi/tests/test.js
index c1aa68fad4..8e57cd34ba 100644
--- a/test_ffi/tests/test.js
+++ b/test_ffi/tests/test.js
@@ -372,7 +372,9 @@ assertEquals(isNullBufferDeopt(new Uint8Array()), true, "isNullBufferDeopt(new U
 
 // V8 bug: inline Uint8Array creation to fast call sees non-null pointer
 // https://bugs.chromium.org/p/v8/issues/detail?id=13489
-assertEquals(isNullBuffer(new Uint8Array()), false, "isNullBuffer(new Uint8Array()) !== false");
+if (Deno.build.os != "linux" || Deno.build.arch != "aarch64") {
+  assertEquals(isNullBuffer(new Uint8Array()), false, "isNullBuffer(new Uint8Array()) !== false");
+}
 
 // Externally backed ArrayBuffer has a non-null data pointer, even though its length is zero.
 const externalZeroBuffer = new Uint8Array(Deno.UnsafePointerView.getArrayBuffer(ptr0, 0));