diff --git a/.github/workflows/run_foss_spec.yml b/.github/workflows/run_foss_spec.yml
index 1487d96a5..3d42496de 100644
--- a/.github/workflows/run_foss_spec.yml
+++ b/.github/workflows/run_foss_spec.yml
@@ -10,21 +10,21 @@ on:
 jobs:
   # Separate linting jobs for faster feedback
   lint-backend:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v4
-      - uses: ruby/setup-ruby@v1
+      - uses: useblacksmith/setup-ruby@v2
         with:
           bundler-cache: true
       - name: Run Rubocop
         run: bundle exec rubocop --parallel
 
   lint-frontend:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4
-      - uses: actions/setup-node@v4
+      - uses: useblacksmith/setup-node@v5
         with:
           node-version: 24
           cache: 'pnpm'
@@ -35,11 +35,11 @@ jobs:
 
   # Frontend tests run in parallel with backend
   frontend-tests:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4
-      - uses: actions/setup-node@v4
+      - uses: useblacksmith/setup-node@v5
         with:
           node-version: 24
           cache: 'pnpm'
@@ -50,7 +50,7 @@ jobs:
 
   # Backend tests with parallelization
   backend-tests:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     strategy:
       fail-fast: false
       matrix:
@@ -86,11 +86,11 @@ jobs:
           ref: ${{ github.event.pull_request.head.ref }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
 
-      - uses: ruby/setup-ruby@v1
+      - uses: useblacksmith/setup-ruby@v2
         with:
           bundler-cache: true
 
-      - uses: actions/setup-node@v4
+      - uses: useblacksmith/setup-node@v5
         with:
           node-version: 24
           cache: 'pnpm'