diff --git a/buildbot/google/terraform/main.tf b/buildbot/google/terraform/main.tf
--- a/buildbot/google/terraform/main.tf
+++ b/buildbot/google/terraform/main.tf
@@ -43,7 +43,7 @@
   node_config {
     # FIXME(kuhnel): turn this into a private cluster, without external IP
     # We need at least 2 vCPU to run all kubernetes services
-    machine_type = "n1-standard-2"
+    machine_type = "e2-medium"
     # use preemptible, as this saves costs
     preemptible = true
   }
@@ -109,7 +109,7 @@
   node_config {
     # use preemptible, as this saves costs
     preemptible  = true
-    machine_type = "n1-highcpu-32"
+    machine_type = "e2-highcpu-32"
     # Windows deployments tend to require more disk space, so using 300GB here.
     disk_size_gb = 300
     # FIXME: test if SSDs are actually faster than HDDs for our use case