diff --git a/prometheus/Chart.yaml b/prometheus/Chart.yaml
index c86cd0a5f..d7f49ad8e 100644
--- a/prometheus/Chart.yaml
+++ b/prometheus/Chart.yaml
@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v2.25.0
 description: OpenStack-Helm Prometheus
 name: prometheus
-version: 0.1.11
+version: 0.1.12
 home: https://prometheus.io/
 sources:
   - https://github.com/prometheus/prometheus
diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index 54d9556e2..142e75884 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -20,7 +20,7 @@ images:
   tags:
     apache_proxy: docker.io/library/httpd:2.4
     prometheus: docker.io/prom/prometheus:v2.25.0
-    helm_tests: docker.io/openstackhelm/heat:newton-ubuntu_xenial
+    helm_tests: docker.io/openstackhelm/heat:wallaby-ubuntu_focal
     dep_check: quay.io/airshipit/kubernetes-entrypoint:v1.0.0
     image_repo_sync: docker.io/library/docker:17.07.0
   pull_policy: IfNotPresent
diff --git a/releasenotes/notes/prometheus.yaml b/releasenotes/notes/prometheus.yaml
index cae44ca32..f6c23da3e 100644
--- a/releasenotes/notes/prometheus.yaml
+++ b/releasenotes/notes/prometheus.yaml
@@ -12,4 +12,5 @@ prometheus:
   - 0.1.9 Retrieve backend port name from values.yaml
   - 0.1.10 Use full image ref for docker official images
   - 0.1.11 Update htk requirements
+  - 0.1.12 Update default image value to Wallaby
 ...