diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5fbd0093..f686b99e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   rust-check:
     name: Rust
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v4
         with:
@@ -45,7 +45,7 @@ jobs:
 
   ios-rust-check:
     name: iOS Rust
-    runs-on: macos-14
+    runs-on: blacksmith-6vcpu-macos-15
     steps:
       - uses: actions/checkout@v4
         with:
@@ -68,7 +68,7 @@ jobs:
 
   js-check:
     name: JS/TS
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@v4
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 428be6ec..5d13afca 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -113,7 +113,7 @@ jobs:
 
   release:
     needs: build
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - name: Download all artifacts
         uses: actions/download-artifact@v4