diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8dd298f..ae4d650 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,6 +47,7 @@ jobs:
         include:
           - platform: aarch64-linux-gnu
             alias:    aarch64-linux
+          - platform: aarch64-linux-musl
           - platform: arm-linux-gnu
             alias:    arm-linux
           - platform: arm-linux-musl
@@ -380,6 +381,69 @@ jobs:
               ruby -rrcd_test -S rake test
             "
 
+  test_aarch64-linux-gnu:
+    name: aarch64-linux-gnu
+    needs: build_native_gem
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.3", "3.2", "3.1", "3.0", "2.7", "2.6", "2.5", "2.4"]
+        platform: [aarch64-linux, aarch64-linux-gnu]
+        # include:
+        #   # ruby 3.0 and earlier ship rubygems < 3.2.33, so can't recognize the -gnu suffix
+        #   - ruby: "3.3"
+        #     platform: aarch64-linux-gnu
+        #   - ruby: "3.2"
+        #     platform: aarch64-linux-gnu
+        #   - ruby: "3.1"
+        #     platform: aarch64-linux-gnu
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Download gem-${{ matrix.platform }}
+        uses: actions/download-artifact@v3
+        with:
+          name: gem-${{ matrix.platform }}
+      - name: Run tests
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+          docker run --rm -v $PWD:/work -w /work \
+            --platform=linux/arm64 ruby:${{ matrix.ruby }} \
+            sh -c "
+              gem install --local *.gem --verbose &&
+              cd test/rcd_test/ &&
+              bundle install &&
+              ruby -rrcd_test -S rake test
+            "
+
+  test_aarch64-linux-musl:
+    name: aarch64-linux-musl
+    needs: build_native_gem
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.3", "3.2", "3.1", "3.0", "2.7", "2.6", "2.5", "2.4"]
+#        ruby: ["3.3", "3.2", "3.1", "3.0", "2.7"] # ruby:2.6-alpine and earlier ship with rubygems that doesn't recognize the -musl suffix
+        platform: [aarch64-linux-musl]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Download gem-${{ matrix.platform }}
+        uses: actions/download-artifact@v3
+        with:
+          name: gem-${{ matrix.platform }}
+      - name: Run tests
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+          docker run --rm -v $PWD:/work -w /work \
+            --platform=linux/arm64 ruby:${{ matrix.ruby }}-alpine \
+            sh -c "
+              gem install --local *.gem --verbose &&
+              cd test/rcd_test/ &&
+              bundle install &&
+              ruby -rrcd_test -S rake test
+            "
+
   test_native_gem:
     name: test native
     needs: build_native_gem
diff --git a/.gitignore b/.gitignore
index 1bdf461..6213d23 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 /.bundle/
 /.yardoc
 /Dockerfile.mri.aarch64-linux-gnu
+/Dockerfile.mri.aarch64-linux-musl
 /Dockerfile.mri.arm-linux-gnu
 /Dockerfile.mri.arm-linux-musl
 /Dockerfile.mri.arm64-darwin
diff --git a/Rakefile b/Rakefile
index dc61908..369e524 100644
--- a/Rakefile
+++ b/Rakefile
@@ -11,6 +11,7 @@ RakeCompilerDock::GemHelper.install_tasks
 platforms = [
   # tuple is [platform, target]
   ["aarch64-linux-gnu", "aarch64-linux-gnu"],
+  ["aarch64-linux-musl", "aarch64-linux-musl"],
   ["arm-linux-gnu", "arm-linux-gnueabihf"],
   ["arm-linux-musl", "arm-linux-musleabihf"],
   ["arm64-darwin", "aarch64-apple-darwin"],
diff --git a/test/rcd_test/Rakefile b/test/rcd_test/Rakefile
index cba8f54..252f94c 100644
--- a/test/rcd_test/Rakefile
+++ b/test/rcd_test/Rakefile
@@ -21,6 +21,7 @@ else
     ext.cross_platform = %w[
       aarch64-linux
       aarch64-linux-gnu
+      aarch64-linux-musl
       arm-linux
       arm-linux-gnu
       arm-linux-musl