diff --git a/zuul.d/ironic-inspector-jobs.yaml b/zuul.d/ironic-inspector-jobs.yaml
index dc4624328..88228fa42 100644
--- a/zuul.d/ironic-inspector-jobs.yaml
+++ b/zuul.d/ironic-inspector-jobs.yaml
@@ -135,7 +135,7 @@
           IRONIC_TEMPEST_WHOLE_DISK_IMAGE: False
           IRONIC_VM_COUNT: 3
           IRONIC_VM_EPHEMERAL_DISK: 1
-          IRONIC_VM_SPECS_RAM: 512
+          IRONIC_VM_SPECS_RAM: 1024
           IRONIC_AUTOMATED_CLEAN_ENABLED: False
           IRONIC_INSPECTOR_DHCP_FILTER: iptables
           Q_AGENT: openvswitch