diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 31bb37f..c8b88d9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -123,7 +123,7 @@ jobs:
           key: Library-Unity-Installer
 
       - name: Test Unity Installer (EditMode)
-        uses: game-ci/unity-test-runner@v4
+        uses: game-ci/unity-test-runner@08fd329f00a18efa297140b14ac28ebce742759e # node24 runtime (PR #304); revert to @v4 once game-ci moves the tag
         env:
           UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
           UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
diff --git a/.github/workflows/test_unity_plugin.yml b/.github/workflows/test_unity_plugin.yml
index a8129f2..3fec0a9 100644
--- a/.github/workflows/test_unity_plugin.yml
+++ b/.github/workflows/test_unity_plugin.yml
@@ -101,7 +101,7 @@ jobs:
         run: echo "image=unityci/editor:ubuntu-${{ inputs.unityVersion }}-${{ matrix.platform }}-3" >> $GITHUB_OUTPUT
         shell: bash
 
-      - uses: game-ci/unity-test-runner@v4
+      - uses: game-ci/unity-test-runner@08fd329f00a18efa297140b14ac28ebce742759e # node24 runtime (PR #304); revert to @v4 once game-ci moves the tag
         id: tests
         env:
           UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}