diff --git a/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet b/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
index bdbe57a2..a540a1fe 100644
--- a/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
+++ b/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
@@ -141,7 +141,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
         spec: {
           replicas: $._config.alertmanager.replicas,
           version: $._config.versions.alertmanager,
-          baseImage: $._config.imageRepos.alertmanager,
+          image: $._config.imageRepos.alertmanager + ':' + $._config.versions.alertmanager,
           nodeSelector: { 'kubernetes.io/os': 'linux' },
           serviceAccountName: 'alertmanager-' + $._config.alertmanager.name,
           securityContext: {
diff --git a/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet b/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
index 07e99483..5d675c79 100644
--- a/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
+++ b/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
@@ -30,7 +30,7 @@ local servicePort = k.core.v1.service.mixin.spec.portsType;
       spec+: {
         thanos+: {
           version: $._config.versions.thanos,
-          baseImage: $._config.imageRepos.thanos,
+          image: $._config.imageRepos.thanos + ':' + $._config.versions.thanos,
           objectStorageConfig: $._config.thanos.objectStorageConfig,
         },
       },
diff --git a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
index 2ea5f800..a93bcb43 100644
--- a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
+++ b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
@@ -178,7 +178,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
         spec: {
           replicas: p.replicas,
           version: $._config.versions.prometheus,
-          baseImage: $._config.imageRepos.prometheus,
+          image: $._config.imageRepos.prometheus + ':' + $._config.versions.prometheus,
           serviceAccountName: 'prometheus-' + p.name,
           serviceMonitorSelector: {},
           podMonitorSelector: {},
diff --git a/manifests/alertmanager-alertmanager.yaml b/manifests/alertmanager-alertmanager.yaml
index 87f98b33..17ec2328 100644
--- a/manifests/alertmanager-alertmanager.yaml
+++ b/manifests/alertmanager-alertmanager.yaml
@@ -6,7 +6,7 @@ metadata:
   name: main
   namespace: monitoring
 spec:
-  baseImage: quay.io/prometheus/alertmanager
+  image: quay.io/prometheus/alertmanager:v0.20.0
   nodeSelector:
     kubernetes.io/os: linux
   replicas: 3
diff --git a/manifests/prometheus-prometheus.yaml b/manifests/prometheus-prometheus.yaml
index 1c8422d5..62c1c0b7 100644
--- a/manifests/prometheus-prometheus.yaml
+++ b/manifests/prometheus-prometheus.yaml
@@ -11,7 +11,7 @@ spec:
     - name: alertmanager-main
       namespace: monitoring
       port: web
-  baseImage: quay.io/prometheus/prometheus
+  image: quay.io/prometheus/prometheus:v2.15.2
   nodeSelector:
     kubernetes.io/os: linux
   podMonitorNamespaceSelector: {}