diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 914d7cc7..27bf99fc 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -13,10 +13,16 @@ concurrency:
 
 jobs:
   tests:
-    name: Test
+    name: "Test (${{ matrix.buildSystem }})"
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@0.0.4
     needs: [soundness, space-format-check]
+    strategy:
+      fail-fast: false
+      matrix:
+        buildSystem: ["native", "swiftbuild"]
     with:
+      swift_flags: "--build-system ${{ matrix.buildSystem }}"
+      swift_nightly_flags: "--build-system ${{ matrix.buildSystem }}"
       linux_os_versions: '["amazonlinux2", "bookworm", "noble", "jammy", "rhel-ubi9"]'
       linux_pre_build_command: ./.github/scripts/prebuild.sh
       linux_build_command: 'swift test --no-parallel'
@@ -35,13 +41,20 @@ jobs:
       macos_exclude_xcode_versions: "[{\"xcode_version\": \"16.3\"}, {\"xcode_version\": \"16.4\"}]"
       macos_pre_build_command: ./.github/scripts/prebuild.sh
       macos_build_command:
-        swift test &&
-        /usr/bin/xcrun xcodebuild -workspace . -scheme SwiftBuild-Package -destination generic/platform=iOS
+        /usr/bin/xcrun xcodebuild -workspace . -scheme SwiftBuild-Package -destination generic/platform=iOS &&
+        swift test
+
   tests_without_docker:
-    name: Test without Docker
+    name: "Test without Docker (build system: ${{ matrix.buildSystem }})"
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@0.0.4
     needs: [soundness, space-format-check]
+    strategy:
+      fail-fast: false
+      matrix:
+        buildSystem: ["native", "swiftbuild"]
     with:
+      swift_flags: "--build-system ${{ matrix.buildSystem }}"
+      swift_nightly_flags: "--build-system ${{ matrix.buildSystem }}"
       enable_linux_checks: false
       enable_windows_docker: false
       windows_pre_build_command: 'Invoke-Program .\.github\scripts\prebuild.ps1'