diff --git a/.github/workflows/_test.yml b/.github/workflows/_test.yml
index 6cc146b28..6efcedce5 100644
--- a/.github/workflows/_test.yml
+++ b/.github/workflows/_test.yml
@@ -6,12 +6,8 @@ jobs:
     strategy:
       matrix:
         os:
-          - ${{ vars.UBUNTU_VERSION }}
-        node-version:
-          - 16.x
-          - 18.x
-          - 20.x
-          - 22.x
+          - ubuntu-22.04
+        node-version: [ 18.x, 20.x, 22.x ]
     steps:
       - uses: actions/checkout@v4
       - name: 'Install node.js ${{ matrix.node-version }}'
@@ -20,5 +16,6 @@ jobs:
           node-version: '${{ matrix.node-version }}'
       - name: Run unit tests
         run: |
+          [[ -f ./bin/ci-setup ]] && ./bin/ci-setup
           npm install
           npm run ci
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 558d5df8f..8c1f92953 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -6,7 +6,7 @@ jobs:
   npm-publish:
     needs: unit-tests
     if: github.ref == 'refs/heads/master' && needs.unit-tests.result == 'success'
-    runs-on: ${{ vars.UBUNTU_VERSION }}
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Install Node.js
@@ -26,7 +26,7 @@ jobs:
     # note: github actions won't run a job if you don't call one of the status check functions, so `always()` is called since it evalutes to `true`
     if: ${{ always() && needs.unit-tests.result == 'success' && (needs.npm-publish.result == 'success' || needs.npm-publish.result == 'skipped') }}
     needs: [unit-tests, npm-publish]
-    runs-on: ${{ vars.UBUNTU_VERSION }}
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Build Docker images