diff --git a/zuul.d/base.yaml b/zuul.d/base.yaml
index 04fe323..880e64f 100644
--- a/zuul.d/base.yaml
+++ b/zuul.d/base.yaml
@@ -112,7 +112,7 @@
         CIRROS_VERSION: 0.5.1
         IMAGE_URLS: https://cloud-images.ubuntu.com/releases/bionic/release/ubuntu-18.04-server-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-18.04-server-cloudimg-amd64
-        ADVANCED_INSTANCE_TYPE: ds512M
+        ADVANCED_INSTANCE_TYPE: ntp_image_384M
         ADVANCED_INSTANCE_USER: ubuntu
         BUILD_TIMEOUT: 784
       tempest_concurrency: 3  # out of 4
diff --git a/zuul.d/master_jobs.yaml b/zuul.d/master_jobs.yaml
index 64283b5..58a1d37 100644
--- a/zuul.d/master_jobs.yaml
+++ b/zuul.d/master_jobs.yaml
@@ -491,7 +491,7 @@
         CIRROS_VERSION: 0.5.1
         IMAGE_URLS: https://cloud-images.ubuntu.com/releases/bionic/release/ubuntu-18.04-server-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-18.04-server-cloudimg-amd64
-        ADVANCED_INSTANCE_TYPE: ds512M
+        ADVANCED_INSTANCE_TYPE: ntp_image_384M
         ADVANCED_INSTANCE_USER: ubuntu
         BUILD_TIMEOUT: 784
         Q_AGENT: openvswitch
diff --git a/zuul.d/rocky_jobs.yaml b/zuul.d/rocky_jobs.yaml
index 11e4c9a..47f88f2 100644
--- a/zuul.d/rocky_jobs.yaml
+++ b/zuul.d/rocky_jobs.yaml
@@ -435,7 +435,7 @@
         CIRROS_VERSION: 0.5.1
         IMAGE_URLS: https://cloud-images.ubuntu.com/releases/bionic/release/ubuntu-18.04-server-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-18.04-server-cloudimg-amd64
-        ADVANCED_INSTANCE_TYPE: ds512M
+        ADVANCED_INSTANCE_TYPE: ntp_image_384M
         ADVANCED_INSTANCE_USER: ubuntu
         BUILD_TIMEOUT: 784
         TEMPEST_PLUGINS: /opt/stack/neutron-tempest-plugin