diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d70b602..210c230 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ env:
 jobs:
   test:
     name: Test
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -37,7 +37,7 @@ jobs:
 
   lint:
     name: Lint
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -61,7 +61,7 @@ jobs:
 
   docs:
     name: Documentation
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -83,7 +83,7 @@ jobs:
 
   msrv:
     name: MSRV (1.93)
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -101,7 +101,7 @@ jobs:
 
   coverage:
     name: Coverage
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -127,7 +127,7 @@ jobs:
 
   security:
     name: Security Audit
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index af2c1e6..43495ec 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -11,7 +11,7 @@ env:
 jobs:
   ci:
     name: CI
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v6
 
@@ -52,7 +52,7 @@ jobs:
   publish-echidna:
     name: Publish echidna
     needs: [ci]
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     environment: release
     permissions:
       id-token: write
@@ -92,7 +92,7 @@ jobs:
   publish-optim:
     name: Publish echidna-optim
     needs: [publish-echidna]
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     environment: release
     permissions:
       id-token: write
@@ -121,7 +121,7 @@ jobs:
   release:
     name: Create GitHub Release
     needs: [publish-echidna]
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     permissions:
       contents: write
     steps: