diff --git a/.github/workflows/alpine.yml b/.github/workflows/alpine.yml
index 9fc1740..769720e 100644
--- a/.github/workflows/alpine.yml
+++ b/.github/workflows/alpine.yml
@@ -17,8 +17,8 @@ jobs:
           {distro: "alpine", version: "edge"}
         ]
         os: [
-          {arch: "aarch64", builder: "nscloud-ubuntu-22.04-arm64-2x8"},
-          {arch: "x86_64", builder: "warp-ubuntu-latest-x64-2x"}
+          {arch: "aarch64", builder: "nscloud-ubuntu-22.04-arm64-2x4"},
+          {arch: "x86_64", builder: "nscloud-ubuntu-22.04-amd64-2x4"}
         ]
 
     runs-on: ${{matrix.os.builder}}