diff --git a/.buildkite/filebeat/filebeat-pipeline.yml b/.buildkite/filebeat/filebeat-pipeline.yml
index 329794de818d..38fa896d1cef 100644
--- a/.buildkite/filebeat/filebeat-pipeline.yml
+++ b/.buildkite/filebeat/filebeat-pipeline.yml
@@ -11,7 +11,7 @@ env:
   GCP_DEFAULT_MACHINE_TYPE: "c2d-highcpu-8"
   GCP_HI_PERF_MACHINE_TYPE: "c2d-highcpu-16"
   GCP_WIN_MACHINE_TYPE: "n2-standard-8"
-  AWS_ARM_INSTANCE_TYPE: "t4g.xlarge"
+  AWS_ARM_INSTANCE_TYPE: "m6g.xlarge"
 
 steps:
   - group: "Filebeat Mandatory Testing"
diff --git a/.buildkite/hooks/post-checkout b/.buildkite/hooks/post-checkout
index d33dd796328a..43881f6e2d82 100644
--- a/.buildkite/hooks/post-checkout
+++ b/.buildkite/hooks/post-checkout
@@ -30,8 +30,6 @@ checkout_merge() {
         git merge --abort
         exit ${merge_result}
     }
-
-    git reset --hard "${pr_commit}"
 }
 
 pull_request="${BUILDKITE_PULL_REQUEST:-false}"