diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e4588ce..8779401 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,7 +2,7 @@ name: ci
 on: [push]
 jobs:
   compile:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -18,7 +18,7 @@ jobs:
       - name: Compile
         run: poetry run mypy .
   test:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -38,7 +38,7 @@ jobs:
   publish:
     needs: [compile, test]
     if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4