diff --git a/.github/workflows/pull.yml b/.github/workflows/pull.yml
index 0c73373568..c141a6dc19 100644
--- a/.github/workflows/pull.yml
+++ b/.github/workflows/pull.yml
@@ -99,7 +99,7 @@ jobs:
           - build-tool: cmake
       fail-fast: false
     with:
-      runner: ${{ matrix.runner }}
+      runner: linux.2xlarge
       docker-image: executorch-ubuntu-22.04-clang12
       submodules: 'true'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
@@ -148,7 +148,7 @@ jobs:
           - build-tool: cmake
       fail-fast: false
     with:
-      runner: ${{ matrix.runner }}
+      runner: linux.2xlarge
       docker-image: executorch-ubuntu-22.04-clang12
       submodules: 'true'
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}