diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml
index f361f59e..f56e539b 100644
--- a/.github/workflows/Build.yml
+++ b/.github/workflows/Build.yml
@@ -16,7 +16,7 @@ defaults:
 
 jobs:
   openroad-linux-py37:
-    runs-on: ubuntu-latest
+    runs-on: none
     container: ubuntu:20.04
     env:
       PACKAGE: "pnr/openroad"
@@ -28,7 +28,7 @@ jobs:
       - uses: ./ci
 
   openroad-linux-py38:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     container: ubuntu:20.04
     env:
       PACKAGE: "pnr/openroad"
@@ -40,7 +40,7 @@ jobs:
       - uses: ./ci
 
   openroad-linux-py310:
-    runs-on: ubuntu-latest
+    runs-on: none
     container: ubuntu:20.04
     env:
       PACKAGE: "pnr/openroad"