diff --git a/zuul.d/ironic-jobs.yaml b/zuul.d/ironic-jobs.yaml
index 892cd3996c..8d46db0182 100644
--- a/zuul.d/ironic-jobs.yaml
+++ b/zuul.d/ironic-jobs.yaml
@@ -43,7 +43,7 @@
         IRONIC_TEMPEST_WHOLE_DISK_IMAGE: False
         IRONIC_VM_COUNT: 1
         IRONIC_VM_EPHEMERAL_DISK: 1
-        IRONIC_VM_SPECS_RAM: 2048
+        IRONIC_VM_SPECS_RAM: 3072
         IRONIC_VM_LOG_DIR: '{{ devstack_base_dir }}/ironic-bm-logs'
         # NOTE(dtantsur): in some jobs we end up with 12 disks total, so reduce
         # each of them. For don't need all 10 GiB for CirrOS anyway.