diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 131483ba94..87c22373eb 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -69,8 +69,8 @@ jobs:
   benchmarks:
     name: Benchmarks
     needs: construct-matrix
-    # TODO: use global reference
-    uses: ./.github/workflows/swift_test_matrix.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/swift_test_matrix.yml@main
     with:
       name: "Benchmarks"
       matrix_string: '${{ needs.construct-matrix.outputs.benchmarks-matrix }}'
diff --git a/.github/workflows/cxx_interop.yml b/.github/workflows/cxx_interop.yml
index 14f0a963b5..95e3b872ea 100644
--- a/.github/workflows/cxx_interop.yml
+++ b/.github/workflows/cxx_interop.yml
@@ -62,8 +62,8 @@ jobs:
   cxx-interop:
     name: Cxx interop
     needs: construct-matrix
-    # TODO: use global reference
-    uses: ./.github/workflows/swift_test_matrix.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/swift_test_matrix.yml@main
     with:
       name: "Cxx interop"
       matrix_string: '${{ needs.construct-matrix.outputs.cxx-interop-matrix }}'
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index a65ec94ca5..d019e91cbc 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -13,8 +13,8 @@ jobs:
 
   unit-tests:
     name: Unit tests
-    # TODO: revert
-    uses: ./.github/workflows/unit_tests.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
     with:
       linux_5_9_arguments_override: "-Xswiftc -warnings-as-errors --explicit-target-dependency-import-check error"
       linux_5_10_arguments_override: "-Xswiftc -warnings-as-errors --explicit-target-dependency-import-check error"
@@ -24,15 +24,15 @@ jobs:
 
   benchmarks:
     name: Benchmarks
-    # TODO: use global reference
-    uses: ./.github/workflows/benchmarks.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/benchmarks.yml@main
     with:
       benchmark_package_path: "Benchmarks"
 
   cxx-interop:
     name: Cxx interop
-    # TODO: use global reference
-    uses: ./.github/workflows/cxx_interop.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/cxx_interop.yml@main
 
   construct-integration-test-matrix:
     name: Construct integration test matrix
@@ -53,8 +53,8 @@ jobs:
   integration-tests:
     name: Integration tests
     needs: construct-integration-test-matrix
-    # TODO: use global reference
-    uses: ./.github/workflows/swift_test_matrix.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/swift_test_matrix.yml@main
     with:
       name: "Integration tests"
       matrix_string: '${{ needs.construct-integration-test-matrix.outputs.integration-test-matrix }}'
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index b88468f7d6..2b7a82cc64 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -105,8 +105,8 @@ jobs:
   unit-tests:
     name: Unit tests
     needs: construct-matrix
-    # TODO: use global reference
-    uses: ./.github/workflows/swift_test_matrix.yml
+    # Workaround https://github.com/nektos/act/issues/1875
+    uses: apple/swift-nio/.github/workflows/swift_test_matrix.yml@main
     with:
       name: "Unit tests"
       matrix_string: '${{ needs.construct-matrix.outputs.unit-test-matrix }}'